1. Ohio Rabies Exposure Events Summary: 2011 1
Annually, the Ohio Department of Health (ODH) distributes a survey to all local health departments (LHDs)
to collect information pertaining to rabies exposure events reported in the state. A rabies exposure event
occurs when a person is bitten by a mammal, when saliva contact from a mammal is introduced into an open
wound or mucous membrane, or when a bat is found in a home or bedroom where a human exposure may
have occurred (e.g. the person was sleeping). A non-human exposure event occurs when a domestic mammal
is exposed to a suspected rabid mammal or when a mammal is showing clinical illness compatible with rabies.
There were 122 responses to the survey, representing 100 percent of local health jurisdictions as some health
jurisdictions contract with others.
A total of 19,562 rabies exposure events were reported to LHDs in Ohio in 2011 (Table 1). Of these events, 93.8
percent (18,354) were bites to humans, 3.9 percent (763) were human non-bite exposures and 2.3 percent (445)
were non-human exposure events. Dog exposures accounted for the majority of events (76.3 percent, 14,918),
followed by cats (17.1 percent, 3,353) and bats (3.2 percent, 619). Domestic animals (dogs, cats, ferrets, livestock,
rodents, rabbits, and other domestic) were responsible for 94.2 percent (18,418) of all events. Wild mammals
(rodents, rabbits, raccoons, skunks, bats and all other wild) accounted for the remaining 5.8 percent (1,144). A
summary of individual reports by jurisdiction and mammal category can be found in Appendix 1.
LHDs reported 19,698 persons were bitten or otherwise exposed to rabies in 2011. LHDs knew of 449 patients
who started rabies post-exposure prophylaxis (PEP) as a result of their exposure. PEP is not reportable in Ohio so
these totals represent only a portion of the true cases of humans seeking treatment after rabies exposure. Bats
and dogs were each responsible for about a third of people starting PEP, followed by cats (18 percent),
Total animal bites, distribution by species and distribution by exposure (bite and non-bite) in 2011 was very
similar to what was reported in 2010. Skunk exposure events increased 68 percent (28 in 2010 to 47 in 2011).
This could reflect increased awareness in 2011 as eight skunks were confirmed rabid and skunk testing also
increased by 60 percent. Also noted was a 66 percent increase in“other wild mammals”exposure events (71 in
2010 to 118 in 2011) but the specific reason for the increase could not be determined.
Ohio Rabies Exposure
Events Summary: 2011
Mammal Categories
Reports Investigated Humans
Exposed
Humans
Starting PEPHuman Bite Human Non-Bite Non-Human Exposure Total
Dog 14630 228 60 14,918 15188 151
Cat 3144 167 42 3,353 3397 83
Ferret 10 0 0 10 10 1
Livestock 23 7 6 36 38 0
Rodent-Rabbit (Domestic) 40 0 0 40 39 0
Other Domestic Mammals 58 2 1 61 62 0
Rodent-Rabbit (Wild) 88 5 8 101 91 6
Raccoon 129 22 108 259 168 46
Skunk 3 6 38 47 10 2
Bat 127 323 169 619 586 152
OtherWild Mammals 102 3 13 118 109 8
Total 18,354 763 445 19,562 19,698 449
Table 1: Reported Mammalian Bites and Exposures for Ohio 2011