RABIES RESOURCE MANUAL
Prepared by:
Iowa Department of Agriculture and Land Stewardship
Iowa Department of Public Health
(Last updated 9/16/09)
Updates
to this Document:
Contributors:
TABLE
OF CONTENTS
I.
Background on Rabies 4
II. Animal Rabies Testing Resources in
IV. Rabies Exposure Flow Charts (mammals,
including bats) 18
V.
Appendixes:
Appendix
1: Model Rabies Exposure Investigation 22
Protocol
for Cities and Counties
Appendix
2: Clarification of Rabies Revaccination Requirements 25
Appendix
3: Rabies Considerations with Animals in Public Settings 26
I. Background on Rabies, also known as
Hydrophobia or Lyssa
(Source:
THE DISEASE
A.
Agent
The
virus that causes rabies is a rhabdovirus of the genus Lyssavirus.
B.
Clinical Description
Animal Rabies
Rabies is primarily a disease
of the central nervous system. Animals with rabies can appear normal, meek
(“dumb rabies”), or may be aggressive (“furious
rabies”). Animals with furious rabies often exhibit aggressive or
unusually excited behavior; they may excessively salivate and attack other
animals or humans. Dumb rabies may be more difficult to detect; animals may
seem tame, wounded, or dazed. These animals have been described as acting
disoriented or suffering from some paralysis, for example dogs may present with
paralysis of the lower jaw and their tongue may be hanging out. While these behaviors are commonly
reported, an animal’s behavior alone is not a reliable indicator of whether it has rabies. Rabies should be considered in mammals with signs or symptoms of
encephalitis or myelitis, including autonomic instability, dysphagia,
hydrophobia, paresis, and paresthesia.
Human
Rabies
Rabies is a fatal infection,
which usually progresses over 2 – 21 days. A prodromal phase, lasting 2 – 10
days, is characterized by pain and numbness/tingling at the site of the bite
(present in 50% – 80% of cases), and nonspecific complaints such as
fatigue, headache and fever. Behavioral changes may also be apparent, including
apprehension, anxiety, agitation, irritability, insomnia and depression. The prodromal phase is quickly followed
by the neurologic phase, during which the patient may suffer disorientation and
hallucinations; paralysis; episodes of terror and excitement; hydrophobia;
hyperventilation; hypersalivation; and seizures. These symptoms are invariably
followed by coma and death. Once symptoms have begun, the illness is almost
always fatal.
Rabies should be
considered in patients with signs or symptoms of encephalitis or myelitis,
including autonomic instability, dysphagia, hydrophobia, paresis, and
paresthesia, particularly if a nonspecific prodrome preceded the onset of these
signs by three to four days. Progressive worsening of neurologic signs is
characteristic of rabies and should be considered as a positive indicator for
rabies. Laboratory tests to rule out common encephalitides (herpes,
enteroviruses, arboviruses) should be performed. Negative results of these
tests would increase the likelihood of rabies as the diagnosis. If a patient
presents with symptoms similar to the ones described above, but the neurologic
status does not change and the illness continues for longer than three weeks,
rabies is unlikely as the diagnosis.
C.
Reservoirs
All
species of mammals are susceptible to rabies infection.
D.
Modes of Transmission
Rabies is spread via the virus-laden saliva of an
infected animal through a bite or saliva contact with mucous membranes or a
fresh break in the skin. Breaks in the skin or mucous membrane exposure to
nervous tissue (brain, spinal cord) of an infected animal also pose a
transmission threat. Bites of some animals, such as bats, can inflict injury so
minor that it goes undetected.
Airborne spread (for example, in a cave with many bats, or in a laboratory
through rabies virus or specimens) has occurred. Rabies is not transmitted through
contact with blood, urine, skunk spray, or feces of an infected animal.
Person-to-person spread has been documented after
organs and corneas were transplanted from rabies infected individuals. Two
nonlaboratory-confirmed cases of person-to-person rabies transmission in
E. Incubation
period
Animal Rabies
Depending on the animal, the incubation period may
vary from a few weeks to a few years, but is typically 1 - 3 months. Some
animals, such as dogs and cats, have been studied extensively. The incubation
period of their disease is commonly three to five weeks.
Human Rabies
The
incubation period is usually 3 - 8 weeks, but can rarely range from as few as 9
days (although 9-day incubation periods have not been documented in the U.S.
with native strains) to as many as 7 years. Less than 1 percent of human cases
have an incubation period longer than 6 months. The incubation period is
typically related to the site of exposure; e.g.,
the incubation period is usually shorter if the virus is inoculated closer to
the central nervous system or in a highly innervated area. The incubation
period also depends on exposure severity (more virus results in a shorter
incubation period) and the age of the exposed person (younger age generally
results in a shorter incubation period).
F. Period
of Communicability or Infectious Period
Animal Rabies
Animals are not
infectious until virus is present in their saliva, which happens around the
time of clinical onset of illness. Dogs, cats and ferrets may shed virus in
their saliva for 3 – 7 days before the onset of clinical signs, and
continue to shed virus until death. The shedding/communicability period for
most wild animals has not been determined, although skunks may shed virus up to
18 days before death. Carcasses of animals with rabies may contain infectious
virus, depending on temperature and environmental conditions. Rabies virus may
persist in a frozen carcass for many weeks; drying and sunlight rapidly
deactivate rabies virus. Dried saliva does not contain live rabies virus.
Human
Rabies
The period
during which a patient is potentially infectious may begin up to 1 week before
symptom onset and last until death. Saliva is considered potentially
infectious, as are cerebrospinal fluid and organs (although viral
concentrations in humans are 3 – 4 times lower than in dogs).
G.
Epidemiology
Animal rabies
Animal rabies exists in most
parts of the world. In the
Human Rabies
Worldwide
an estimated 35,000–40,000 human rabies deaths occur each year. The vast
majority of these deaths occur in developing countries. In the
ASSESSING THE NEED FOR HUMAN POST-EXPOSURE PROPHYLAXIS (
Assessing the need to provide post-exposure
prophylaxis to humans exposed to animals suspected to have rabies should be
determined by asking a series of questions. Each question needs to be answered to
determine if
1)
Is the animal species known to carry rabies?
2)
Did an actual exposure occur?
3)
Can the animal be tested or quarantined?
Question
1. Is the animal species known to
carry rabies?
Wild
Animals:
In wild animals the rabies risk
varies by species:
·
High-risk animals are those that are known to
commonly carry rabies. In
·
Medium-risk animals have very rarely been found to
carry rabies in
·
Low-risk animals are those that almost never carry
rabies when they are demonstrating normal behavior. These include small rodents, squirrels,
opossum, and lagomorphs (rabbits).
If these species are
acting abnormally you should consider them potentially rabid.
Dogs,
Cats, Ferrets, Horses and Livestock:
Dogs, cats, ferrets, horses,
and livestock periodically test positive for rabies in
Other
Species:
Contact CADE for consultation.
Call 800-362-2736 during business hours or 515-323-4360 after hours.
Question
1 Interpretation:
If it has been determined that
the animal involved is a potential carrier of rabies, the clinician should move
to the second question. (Whether or not an animal has been vaccinated is immaterial to assessment because,
though vaccination decreases the risk of the animal being rabid, it is not a
guarantee.)
Question
2. Did an exposure actually occur?
Rabies is primarily
transmitted through saliva or neural tissue contact to open wounds (including
through bites) or mucous membranes.
The virus will not cross intact skin. Review the following lists to determine
if a rabies exposure has occurred.
Salivary exposures could include:
·
Bites
·
Licking of mucous membranes
·
Saliva contamination an open wound
Non-salivary exposures could include:
·
Neural tissue contact to an open wound or mucous
membrane (ie. if a person shoots an animal in the head and is splattered with
brain material in eyes, nose, or mouth)
·
Organ transplants from patients who died of
undiagnosed rabies infection
·
Exposure to large amounts of aerosolized rabies
virus (e.g., explorers of caves colonized by rabid bats).
Situations that are not considered rabies exposures and do not indicate
·
Petting a rabid animal
·
Contact with blood, urine, scent of skunks, and
feces
Bats pose a unique problem.
The bite of a bat can be so small that it may be undetected. Review the
following lists to determine if a rabies exposure has occurred.
Situations that are considered bat exposures to rabies:
·
People that awaken from sleep to find a bat in the
room they are sleeping in
·
A bat is found in a room with children or
incapacitated individuals without supervision
·
If a person has direct physical contact with a bat
and cannot definitely say they were not bitten (i.e. a bat flies into a
person’s arm)
A Situation that is not considered bat exposure to rabies:
·
People that are awake and find themselves in a
room with a bat and can state that they were not bitten by the bat
Question
2 Interpretation:
If it has been determined that
a potential exposure occurred, the clinician should move to the third question
to determine if the animal involved can be tested or quarantined.
Question
3. Can the animal be tested or quarantined?
Bats
If available, the bat should
be tested for rabies. If the bat is
unavailable for testing,
Wild Animals
High risk animals should be
euthanized and submitted for rabies testing. In cases in which the animals are unavailable
for testing, they should be assumed rabid and PEP is recommended.
All medium-risk animals and
any low-risk animal behaving abnormally.
If the animal is available, it should be submitted for testing. If the animal is not available, PEP
should be considered and the exposed person should consult with their personal
physician to make the determination.
Dogs,
Cats or Ferrets
Dogs, cats and ferrets that
have bitten or exposed a human to their saliva and appear healthy may be
quarantined for 10 days in lieu of euthanasia and testing. If at any time
during the quarantine period, a dog, cat, or ferret shows signs of rabies, the
animal should be immediately euthanized and tested.
Dogs, cats and ferrets that
are incubating rabies will begin to exhibit signs of the disease very soon
after they begin shedding virus in saliva. If an animal remains healthy during
the 10-day quarantine, it could not have been shedding rabies virus in its
saliva at the time of the bite or saliva exposure. This does not guarantee that the animal
is not incubating rabies; it only indicates that the animal was not infectious
at the time in which the human was exposed.
A dog, cat, or ferret that is
not available for observation or testing should be considered potentially rabid
and
Note: If a patient is bitten above the
shoulder,
Other
Animal Species
For
exposure to other animal species, recommendations are made on a case-by-case
basis. Contact
HUMAN POST-EXPOSURE PROPHYLAXIS PROTOCOL
Severe
Bites above the Shoulder
If a patient is bitten above
the shoulder,
Human
Post-Exposure Prophylaxis
·
Immediately and thoroughly wash all bite wounds
and scratches with soap and water.
Simple wound cleaning has been shown to markedly reduce the likelihood
of rabies.
·
Tetanus prophylaxis should be considered
·
Bacterial infections should be assessed and
controlled
1.
Treatment of persons who have not previously received rabies vaccine
and have not previously received rabies post-exposure treatment.
a.
Human
rabies immune globulin (HRIG) should be administered at the beginning of the
anti-rabies prophylaxis. If it is
not given with the first post-exposure dose of vaccine, it can be given up to
and including seven days after the first dose of vaccine. The recommended dose of HRIG is 20 IU/kg
of body weight. If anatomically
feasible, the full dose of HRIG should be thoroughly infiltrated in the area
around the wound. The rest should be administered intramuscularly at a
different site than the vaccine. HRIG is given only once at the beginning of
antirabies prophylaxis.
b.
Five - 1ml doses of rabies vaccine should be
administered intramuscularly (do not use the buttocks) on days 0, 3, 7, 14, and
28.
2.
Treatment of persons who have
received either pre-exposure vaccination or have previously received rabies
post-exposure treatment (according to the current protocols and
with approved products, if unsure contact
a.
Two IM doses (1.0 ml each) of vaccine should be
administered on days 0 and 3. Human
Rabies Immune Globulin should NOT be
administered.
Exposure to a Human Potentially Infected with Rabies
Contact isolation for
respiratory secretions should be in place for persons suspected or confirmed to
have rabies. Articles soiled with saliva should be disinfected. Attending
personnel should be protected (gloves, gowns, face protection) against any
exposure to saliva. If a patient who has rabies (or is suspected of having
rabies) exposes another person to saliva (through a bite or via infectious material
exposure to an open wound or mucous membrane), rabies
Precautions
and Contraindications to Rabies Prophylaxis
For
information on contraindications and precautions see the Human Rabies
Prevention Recommendations of the Advisory Committee on Immunization Practices
available on the CDC Web site: http://www.cdc.gov/mmwr/PDF/rr/rr5703.pdf
.
RECOMMENDATIONS FOR DOMESTIC ANIMALS
EXPOSED TO RABID OR POTENTIALLY RABID ANIMALS
This section refers to any animal
exposed to a confirmed or suspected rabid animal. Wild mammalian carnivores or
bats that are not available or suitable for testing should be regarded as rabid
animals.
Dogs, Cats, or Ferrets
Unvaccinated dogs, cats, and ferrets exposed
to a rabid animal should be euthanized immediately. If the owner is unwilling to
have this done, the animal should be placed in strict isolation for 6 months. Isolation
in this context refers to confinement in an enclosure that precludes direct
contact with people and other animals. Rabies vaccine should be
administered upon entry into isolation or 1 month prior to release to comply
with pre-exposure vaccination recommendations. Animals overdue for a booster
vaccination should be considered unvaccinated.
There
are currently no USDA licensed biologics for post-exposure prophylaxis of
previously unvaccinated domestic animals, and there is evidence that the use of
vaccine alone will not reliably prevent the disease in these animals.
Dogs,
cats, and ferrets that are currently
vaccinated should be revaccinated immediately, kept under the owner’s
control, and observed for 45 days. Any illness in an isolated or confined
animal should be reported immediately to the local health department. If signs
suggestive of rabies develop, the animal should be euthanized and the head
shipped for testing.
Livestock
All
species of livestock are susceptible to rabies; cattle and horses are the most
frequently reported infected species.
Livestock
exposed to a rabid animal and currently
vaccinated with a vaccine approved by USDA for that species should be revaccinated immediately and observed
for 45 days.
Unvaccinated
livestock should be euthanized immediately. If the animal is not euthanized it should be kept under
close observation for 6 months. Any illness in an animal under observation
should be reported immediately to the local health department and veterinarian.
If signs suggestive of rabies develop, the animal should be humanely euthanized
and the head removed by a licensed veterinarian and shipped for testing.
Multiple
rabid animals in a herd or herbivore-to-herbivore transmission are uncommon;
therefore, restricting the rest of the herd if a single animal has been exposed
to or infected by rabies is usually not necessary.
Handling
and consumption of tissues from exposed animals may carry a risk for rabies
transmission. Risk factors depend in part on the site(s) of exposure, amount of
virus present, severity of wounds, and whether sufficient contaminated tissue
has been excised. If an exposed animal is to be slaughtered for consumption, it
should be done immediately after exposure and all tissues should be cooked
thoroughly. Persons handling exposed animals, carcasses, and tissues should use
barrier precautions. Historically, federal guidelines for meat inspectors
required that any animal known to have been exposed to rabies within 8 months
be rejected for slaughter. USDA Food and Inspection Service (FSIS) meat
inspectors should be notified if such exposures occur in food animals prior to
slaughter.
Rabies
virus may be widely distributed in tissues of infected animals. Tissues and
products from a rabid animal should not be used for human or animal
consumption. Pasteurization temperatures will inactivate rabies virus,
therefore, inadvertently drinking pasteurized milk or eating thoroughly cooked
animal products does not constitute a rabies exposure.
Other Animals
Other
mammals exposed to a rabid animal should be euthanized immediately. Animals
maintained in USDA-licensed research facilities or accredited zoological parks
should be evaluated on a case-by-case basis.
Source:
The Compendium of Animal Rabies Prevention and Control, 2008 National
Association of State Public Health Veterinarians, Inc. (NASPHV) http://www.nasphv.org/documentsCompendia.html
PREVENTIVE
MEASURES
Environmental Measures
Human rabies control relies on controlling
rabies in the animal population, therefore animal quarantine regulations and
vaccination laws should be enforced.
In
Education
Offer
the following advice to the public to help prevent rabies:
·
Vaccinate pets; dogs
are required by law to be vaccinated. Although not required by law, cat,
ferret, horse and valuable livestock vaccinations are recommended.
·
Do not feed or handle
wild or stray animals. Avoid sick animals or those that act strangely.
·
Do not touch or handle
dead animals.
·
Contact local animal
control officer with questions about the capture of an animal or handling of a
carcass.
·
Cover garbage cans and
keep pet food indoors, so wild animals are not attracted.
·
Do not keep wild
animals as pets, which is often illegal as well as dangerous.
·
Never handle bats. A
bat bite or scratch may be small and go unnoticed. People who awaken to find a
bat in the room or children awake or asleep with a bat in a room may require
·
Recommend that
travelers to developing countries with endemic rabies receive pre-exposure
prophylaxis if they will be visiting in situations where exposure is likely
(e.g., camping, hiking, backpacking, or away from areas where treatment for a
bite wound is available). Travelers should be warned to avoid petting or
otherwise having contact with stray animals.
Note: For more information about international travel and rabies,
contact the CDC Traveler’s Health Office at (877) 394-8747 or via the
internet at http://www.cdc.gov/travel
HUMAN
Pre-exposure vaccination is
recommended for persons in the following categories:
·
Veterinarians
·
Animal handlers
·
Laboratory workers who handle
rabies virus
·
Persons living in or visiting
countries where rabies is endemic
·
Others whose occupations or
hobbies bring them into contact with potentially rabid animals
Pre-Exposure
Vaccination Protocol:
Three 1.0
ml injections of vaccine given intramuscularly on each of days 0, 7, and 21 or
28.
NOTE: Pre-exposure vaccination does NOT eliminate the need for prompt post-exposure
prophylaxis. If persons who have
completed the pre-exposure vaccination series are subsequently exposed to
rabies, the following protocol should be followed (as stated on page 7):
§
Two IM doses (1.0 ml each) of vaccine, on days 0
and 3. Human Rabies Immune Globulin
should NOT be administered.
Monitoring Pre-Exposure
Vaccination Titers:
Persons who
work with live rabies virus in research laboratories or vaccine production
facilities and are under continuous risk of unapparent rabies virus exposure
should have their serum rabies antibody titer measured every 6 months. Acceptable antibody level is 1:5 titer
by the rapid fluorescent focus inhibition test (RFFIT) technique. See the list
of laboratories performing the serologic test below. If the antibody level is less than 1:5,
booster doses of vaccines should be administered to maintain a serum titer
corresponding to at least complete neutralization at a 1:5 serum dilution by
RFFIT.
Persons who
frequently come in contact with potentially rabid animals, such as veterinarians,
veterinary technicians, animals control officers, or wildlife officers, should have a serum sample tested for rabies antibody
every 2 years. If their antibody level is less than
complete neutralization at a 1:5 serum dilution by the RFFIT, the person should
receive a single booster dose of vaccine.
Laboratories
that perform the Rapid Fluorescent Focus Inhibition Test
(the
CDC recognized test for assessing human antibody levels)
FEE: Approximately
$25 (call for details)
INTERPRETATION:
A titer of 1:5 is considered adequate.
SHIPPING INFORMATION: Please send the following information
with your specimen:
1. Address
of person or institution responsible for receiving the results and billing
information.
2.
Complete vaccination history if possible.
3.
All serum samples that are potentially pathogenic to
humans should be labeled or marked with red tape or sticker.
SEND SAMPLES TO (any one of
the following):
Dr.
Deborah J. Briggs Screen
$25, endpoint $30 as of
Veterinary
Medical Center 12/99.
Send 2 mls of sera,
(785)
532-4483
delivery.
Mary
Yeager Screen
$23 ($20 for 10 or more)
(770)
205-9091 or (800) 717-5612
FAX:
(770) 204-9021
Krystyna
Minc Endpoint
$20 as of 12/99.
Dept. of
Pathobiology, Virology Lab Send
1 ml of serum in cold packs
261
Greene Hall with
accompanying vaccination
(334)
844-2659 specimens
tested.
INDIGENT
PATIENT PROGRAMS
Two manufacturers
have patient assistant programs that provide medications to uninsured or
underinsured patients.
§
The
RabAvert ® (human rabies vaccine) Patient Assistance Program is managed
through Rx for Hope and can be accessed at: (800) 589-0837 during buisness hours and (908)-713-7698 after
hours. Program applications can be
accessed at the following link: https://www.rxhope.com/papinfo/company/pdf/novartis1206.pdf
o
The completed application and attachments must be
returned to the RabAvert Patient Assistance Program before the patient
completes the RabAvert treatment.
o
RabAvert ®
Patient Assistance Eligibility:
Patient must be a
II. Animal Rabies Testing Resources in
There are two laboratories in
UHL is the designated state public health
laboratory in
ISU VDL has historically provided animal rabies testing
as a service to veterinarians who may be ruling out rabies as one of several
differential diagnosis.
However, in recent years ISU VDL has received an increasing number of
requests for rabies testing of domestic, livestock, and wildlife species where
the submitter is only requesting rabies testing without additional
diagnostics. While ISU VDL is
willing and able to provide that service to the public, healthcare, and
veterinary communities, they do not receive any state or federal funding to
support testing. Therefore, ISU VDL
must charge for the testing to cover their operating expenses. ISU VDL will provide rabies testing for
cases of animal and/or human exposure.
Specimen
Submission and Transportation:
Specimen Preservation:
§
If
the specimen will not be submitted for testing immediately, it should be
refrigerated until transported or shipped.
§
DO NOT FREEZE THE SPECIMEN
Specimen Transport:
§
Private vehicle is the fastest and
preferred way to get the specimen to the laboratory.
·
Double
bag the specimen
·
Place
the specimen in a hard sided container, such as a Styrofoam cooler
·
Place
ice packs around the double bagged specimen to keep it cool during transport
·
Include
the appropriate Rabies Test Request Form from UHL or ISU
· Call
the appropriate laboratory before departure
§
Commercial courier service, such as FedEx, can
also be used.
·
Double
bag the specimen
·
Place
the double bagged specimen in a hard sided container, such as a Styrofoam
cooler.
·
Place
ice packs around the double bagged specimen to keep it cool -DO
NOT FREEZE.
·
Place the completed Rabies Test Request Form in a
separate plastic bag to prevent it from becoming wet or contaminated. Place the
bagged Rabies Test Request Form in the hard sided container.
–
Firmly
secure the lid of the hard sided container.
–
Package
(place in a box) the hard sided container and ship.
–
Ship via overnight
courier.
NOTE:
Improper packaging and/or delayed delivery may compromise the integrity of the
brain material rendering the specimen unsatisfactory for testing.
Specimen submission
guidelines:
§
Large/medium animals- If only requesting rabies testing, a veterinarian
needs to remove the head and only the head should be submitted for testing*.
§
Bats- Try not to crush the skull of the bat. Submit the entire
animal.
§
Small animals (mice, squirrels, etc): Submitting the entire animal is preferred.
*If a veterinarian is requesting other
diagnostics from ISU VDL all appropriate samples should also be included. In some cases, this may mean that the
entire animal should be submitted.
Laboratory
Contact Information:
UHL:
319-335-4500 or 800-421-4692
(answered all hours)
ISU VDL:
During business hours call
515-294-1950 – after hours call 515-290-1969
Authority
to mandate that an animal be placed in quarantine:
(Dogs, cats, and
ferrets are the only animals that can be quarantined according to national
recommendations.)
State of
If a
local board of health receives information that an animal
has bitten a person or that a dog or animal is suspected of
having rabies, the board shall order the owner to confine
such animal in the manner it directs. If the owner fails
to confine such animal in the manner directed, the animal shall be apprehended and impounded by such board, and
after ten days the board may humanely destroy the animal.
If such animal is returned to its owner, the owner shall
pay the cost of impoundment. This section shall not apply if a police
service dog or a horse used by a law enforcement agency and acting in the
performance of its duties has bitten a person.
[C66,
71, 73, 75, 77, 79, 81, §351.39]
2001
Acts, ch 19, §1; 2001 Acts, ch 176, §68
Quarantine Enforcement
Several years ago, the Iowa Department of Public
Health surveyed counties to get a better understanding of how they respond to
potential rabies exposure cases.
While some counties had extremely detailed protocols for addressing
rabies exposure situations, others did not.
Most counties responded that animal
bites were addressed by one the following entities:
§
Local public health
§
Local environmental health
§
County sheriff’s department
§
Local law enforcement
§
Local animal control
In addition, most counties responded that
depending upon the circumstances of the exposures, they may allow animal owners
to conduct in-home quarantines but also mandate out-of-the-home quarantines as
well. Some of the factors they use
to determine which type of quarantine to mandate include:
In-Home Quarantine:
§
Animal’s rabies vaccinations are current
§
Owners are cooperative and seem trustworthy
§
Owners have the ability to confine animal to the
property to prevent escape or exposure to other humans or animals. Such as
leash control or fenced yard.
Many counties also have processes
in place to follow-up with the owner at the end of 10 days:
–
Some counties require the owner to schedule a
veterinary visit at the end of 10 days so that the veterinarian can verify that
the animal is alive and is not showing symptoms that could be consistent with
rabies.
–
In other counties, public health, environmental
health, or law enforcement will visit the home to make sure the animal is still
alive and is not showing clinical symptoms.
–
Several counties also indicated that they call the
owner at the end of the 10 days to verify verbally that the animal is alive and
not showing clinical signs.
Out-of-the-Home
Quarantine:
§
Not current on rabies vaccinations
§
Owners are not cooperative
§
Owners do not have the ability to satisfactorily confine
the animal
Most counties responded that
when they mandate out-of-the-home quarantines, the animals are typically housed
in one of the following:
–
A local animal shelter or humane society, with
which the county holds a contract for service.
–
A local veterinary clinic, with which the county
holds a contract for service.
Most counties responded that
expenses related to the quarantine and / or testing of owned animals were the
responsibility of the animal owner.
Expenses accrued during the quarantine and / or testing of stray animals
were the responsibility of the local board of health in most counties.
V. Exposure flow charts (all mammals and
bats)

VI. Rabies Statistics
ANIMAL RABIES IN
In 2008, 29 cases of animal rabies were reported
in Iowa, which is comparable to the number reported last year, but is
significantly less than previous years (see the table below: Positive Rabies
Cases 2001-2008). Rabies was
identified most frequently in wildlife species including 11 bats and 7
skunks. Ten cases were diagnosed in
domestic species including 9 cats and 1 dog. One cow tested positive as well.

As illustrated on the map below, cases were
distributed across the state.

During 2008, 1,721 animals in
|
Species |
Positive |
Total Tested |
% Positive |
|
Dogs |
1 |
381 |
0.26% |
|
Cows |
1 |
64 |
1.56% |
|
Cats |
9 |
523 |
1.72% |
|
Bat |
11 |
555 |
1.98% |
|
Skunks |
7 |
13 |
53.85% |
Appendix 1:
SAMPLE: Rabies Exposure Investigation
Protocol
In County/City X
potential rabies exposures of humans, including those reported by the general
public, health care providers, or veterinarians should be referred to:
Agency/Name: ___________________________
Contact Information:
_____________
_
(For example: County Public Health/County Environmental
Health/Sheriff’s Department/Local Animal Control)
This entity serves as the primary point of contact for potential
rabies exposures of humans. This primary point of contact will assess each
potential rabies exposure individually.
If the animal which potentially exposed the human is a dog, cat, or
ferret, the primary point of contact will determine whether the animal should
be quarantined in accordance with the Compendium
of Animal Rabies Prevention and Control, 2008.
If it is determined that the
animal should be quarantined, the primary point of contact will decide whether
an in-home or out-of-the-home quarantine is most appropriate. The decision will be based upon several
factors, including but not limited to the following.
In-Home Quarantines may be allowed under the following circumstances:
§
If the animal is current its rabies vaccinations
§
If the owners are cooperative and seem trustworthy
§
If the owners have the ability to confine animal
to the property.
Out-of-the-Home Quarantines
may be required under the following circumstances:
§
If the animal is not current on rabies
vaccinations
§
If the owners are not cooperative
§
If the owners do not have the ability to
satisfactorily confine the animal
At end of an in-home
quarantine period, the primary point of contact will confirm that the animal is
still alive and not showing symptoms of rabies infection by ______________________
(veterinary confirmation is recommended).
County/City X has an
agreement with X veterinary clinic/ humane society/shelter to
provide out-of-the-home quarantine services for stray and / or owned animals.
It is the responsibility of the animal owner to pay for any fees associated
with animal quarantines and/or testing.
Expenses related to quarantine and/or testing of
stray animals are the responsibility of __________________ .
SAMPLE: RABIES EXPOSURE REPORTING
THIS REPORTING
REPORT:
Caller
Name: _________________________________
Caller
Phone Number:
________________________
Completed
by: ________________________________
Date
of Report: ______________________
Relationship to Exposed Patient: _______________
PERSON EXPOSED:
First
Name: __________________________________
Last
Name: ______________________________
Age:
_____ Male:
Female:
Street:
_________________________________
City: _____________________ State:
_______
Zip: ___________
Home Phone: ______________________
Alternate Phone: _________________
Patient’s Physician: _______________________
Clinic/Hospital: __________________________
Phone: _________________________________
Is patient hospitalized? Y / N
Other information: __________________________
Guardian: _______________________________
DESCRIPTION
OF EXPOSURE:
Exposure date: ___________________Time: _________
Street: ________________________________________
City:
___________________________________
County:
Summary:_____________________________________________________________________________ _______________________________________
______________________________________
Bite:
Y / N
Bite Location: ______________________
Explain
the Non-bite Exposure:_______________
______________________________________________________________________________
Were
others exposed? Y / N
Ø
If yes, please list:_________________________
ANIMAL:
Species:
____________________________
Wild Stray
Owned
If Applicable:
Breed: ______________
Age: _________ Sex: _________
Current Rabies Vaccine: Y/N
Animal
Owner Name:______________________
Address: ______________________________________
City:
___________________________________
County:
Owner Phone: ______________________
Owner’s
Veterinarian: _____________________
Clinic Name: ___________________________________
Clinic Address: _________________________________
Clinic Phone: ____________________
Is the
animal available for testing? Y / N
Is
animal available for observation? Y / N
Where
is the animal now? ________________
RECOMMENDATIONS:
Nothing- no exposure occurred
Owner must confine animal in the home for 10 days (dogs, cats, ferrets
only). If symptomatic euthanize and test, administer
Animal will be confined in the veterinary clinic/shelter for 10 days
(dogs, cats, ferrets only). If
symptomatic euthanize and test, administer
Shelter/clinic name and location ____________________________
Euthanize animal and test immediately. Administer
Recommended patient consult their healthcare provider
Bite above shoulders, give
Recommended bat proofing
Other: ___________________________________
SAMPLE: Veterinary Certification Form
On (date), I examined the following
animal. Upon physical examination,
the animal was not exhibiting clinical symptoms consistent with rabies virus
infection.
Animal Name: ___________________________
Species: ___________________________
Owners Name: ___________________________
Address: ___________________________
City/State/Zip: ___________________________
Phone: ___________________________
Veterinarians
Name: _____________________
Clinic
Address: _____________________
Phone:
_____________________
Signature:
_____________________
Template
developed by the Iowa Department of Public Health and
the
Appendix
2: Clarification of Rabies Revaccination Requirements
(Source:
Rabies
revaccination
An initial rabies vaccine should be boostered in
one year. At that point,
Appendix
3: Rabies Considerations with Animals in Public Settings
Source:
Compendium of Measures to Prevent Disease Associated with Animals in
Public Settings, 2009 (Morbidity and Mortality
Weekly Report,
Exposure
to Rabies
Certain venues encourage or permit the public to be
in contact with animals, resulting in millions of human-animal interactions
each year. These settings include county or state fairs, petting zoos, animal
swap meets, pet stores, zoologic institutions, circuses, carnivals, educational
farms, livestock birthing exhibits, educational exhibits at schools and
child-care facilities, and wildlife photo opportunities. Although human-animal
contact has many benefits, many human health problems are associated with these
settings, including infectious diseases, exposure to rabies, and injuries. Although no
human rabies deaths caused by animal contact in public settings have been
reported, multiple rabies exposures have occurred, requiring extensive public
health investigations and medical follow-up.
For
example, thousands of persons have received rabies postexposure prophylaxis (
Recommendations:
Rabies:
All animals should be housed to reduce potential exposure
to wild animal rabies reservoirs. Mammals should also be up-to-date on rabies
vaccinations. These steps are particularly critical in areas where rabies is
endemic and in venues where animal contact is encouraged (e.g., petting zoos).
Because of the extended incubation period for rabies, unvaccinated mammals
should be vaccinated at least 1 month before they have contact with the public.
If
no licensed rabies vaccine exists for a particular species (e.g., goats, swine,
llamas, and camels) that is used in a setting where public contact occurs,
consultation with a veterinarian regarding off-label use of rabies vaccine is
recommended. Use of off-label vaccine does not provide the same level of
assurance as vaccine labeled for use in a particular species; however,
off-label use of vaccine might provide protection for certain animals and thus
decrease the probability of rabies transmission. Vaccinating slaughter-class
animals before displaying them at fairs might not be feasible because of the
vaccine withdrawal period that occurs as a result of antibiotics used as
preservatives in certain vaccines. Mammals that are too young to be vaccinated
should be used in exhibit settings only if additional restrictive measures are
available to reduce risks (e.g., using only animals that were born to
vaccinated mothers and housed to avoid rabies exposure). In animal contact
settings, rabies testing should be considered for animals that die suddenly.