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Uzunović, Skomorac, Bašić, and Mijač-Musić: Epidemiological Features of Human Cases After Bites/Scratches From Rabies-suspected Animals in Zenica-Doboj Canton, Bosnia and Herzegovina

ABSTRACT

Objectives:

To determine the epidemiological features of patients and animals after bites/scratches from rabies-suspected animals in Zenica-Doboj Canton, Bosnia and Herzegovina.

Methods:

Data from all patients (and the causative animals) admitted to the Antirabies Service of the Institute for Health and Food Safety Zenica in the 2009-2017 period were analyzed, including age, sex, anatomical site of the bite/scratch, animal type (stray/owned/wildlife), veterinary observations of the animal, and whether antirabies post-exposure prophylaxis (PEP) was indicated and/or administered.

Results:

In total, 1716 patients were admitted. Bites/scratches were most frequently recorded during April and May (n=181, 10.5% and n=163, 9.5%, respectively). The persons admitted were mostly from the Zenica municipality (n=1278, 74.5%; incidence: 11.55/ 1000), which is 66.6% urbanized. Males were more frequently represented (n=1089, 63.6%). The patients were mostly 50-64 and 25-49 years of age (n=425, 24.7% and n=390, 22.7%, respectively). Dog bites were the most common cause (n=1634, 95.1%, of which n=1258, 77.0% were caused by stray dogs). PEP was indicated for 997 (58.1%) patients. Only 340 (19.9%) animals underwent veterinary observations (3.1% of stray and 76.1% of owned animals). The largest number of injuries were presented at lower extremities, 1044 (60.8%) cases.

Conclusions:

Zenica-Doboj Canton is a rabies-free region. Due to the high rate of stray animals not undergoing veterinary observations, the non-existence of a unique dog registry, and the consequent lack of information about stray animals in terms of number, vaccination, neutering, and euthanasia, there is an urgent need for improving the prevention and control of rabies within the One Health framework.

INTRODUCTION

Rabies is an emerging, and in some countries endemic, zoonotic disease representing a serious threat to the health of humans and animals, and to global health safety. Rabies is an infectious viral disease that is almost always fatal when clinical signs appear [1-3]. It is estimated that the virus endangers 59 000 human lives annually, mostly among populations without adequate health services, especially in Africa and Asia [4]. Over 95% of rabies deaths in humans result from virus transmission through the bites of infected dogs [5]. Rabies is a 100% preventable disease through timely administration of post-exposure prophylaxis (PEP) to bite victims; however, fatalities still occur in many endemic countries [6].
The European Rabies Surveillance System was established in 1977. At that time, wildlife rabies accounted for 87.6% of cases, of which 74.2% occurred in foxes. Among domestic animals, cat rabies was most common, with 4.7%, followed by cattle and dogs, which accounted for 3.3% and 2.5% of the cases, respectively [7].
Dog-mediated and wildlife rabies was prevalent in Bosnia and Herzegovina (B&H) for many years [8]. From 1946 (after World War II) to 1957, B&H accounted for more than half of the wolf rabies cases and more than a third of rabid foxes in the entire Socialist Federal Republic of Yugoslavia, which at that time contained B&H. The estimated dog population in B&H was 200 000, of which 40-50% were vaccinated and about 10% destroyed annually [8]. In 1971, a dog rabies outbreak emerged in northeastern B&H, where rabies had been absent since 1964, probably because of a significant increase in the number of stray dogs in that region; the epizootic was eliminated by reinforced dog vaccination and other control activities [9].
Rabies in the Socialist Federal Republic of Yugoslavia, including B&H as 1 of its 6 constituent republics, was reported in 1977 in the first issue of the Rabies Bulletin Europe [10]. Sylvatic rabies spread from the north to B&H in 1982, and it was diagnosed in 13 foxes, 2 cattle, and 1 wild cat. In 1983, the epizootic further spread to the central and eastern regions, and 92 rabies cases, of which 68 were foxes, were reported [11].
After signing of the Dayton Peace Agreement, autonomous B&H was divided into 3 administrative units, known as entities: the Federation of Bosnia and Herzegovina (FB&H), Republic of Srpska (RS), and Brčko District (BD). The first rabies cases from autonomous B&H were reported in the World Health Organization (WHO) Rabies Bulletin Europe 2001, in 15 foxes and 1 pine marten (wild animals), and 1 dog, bovine, and sheep. The rabid animals were mostly (2 domestic and 5 wild animal rabies cases) from Zenica-Doboj Canton, in central Bosnia. No human cases were recorded [12].
Several studies have investigated rabies infections in B&H, but all have been conducted in the distant history of B&H, which was part of the Kingdom of Serbs, Croats, and Slovenes until World War II and the Socialist Federal Republic of Yugoslavia until 1991 [8,9,11]. In the recent history of B&H (after 1991), a single study has been published on the molecular epidemiology of rabies viruses isolated from foxes, dogs and a cat [13]. To our knowledge, no studies have been conducted to evaluate the epidemiological features of human cases after bites/scratches from rabies-suspected animals, including age, sex, seasonality, type of animal, anatomical site of bite/scratches, and PEP administration.
The aim of this study was to determine the epidemiological features of human cases after bites/scratches from rabies-suspected animals in Zenica-Doboj Canton in B&H.

METHODS

Study Setting

Zenica-Doboj Canton is situated in the central part of B&H, which is located in the Balkan Peninsula in southeastern Europe (Figure 1). The cantonal capital is Zenica (30.4% of the canton population). Its area is 3904 km2 (7.6% of the B&H area of 51 129 km2). Zenica-Doboj Canton includes 12 municipalities, which together have a population of 364 433 (approximately 10% of the B&H population) in 2 distinct residential zones: an urban zone with 126 940 (34.8%) inhabitants, and an agricultural rural zone with 237 493 (65.2%) inhabitants.

Study Design and Participants

A retrospective analysis of all human cases admitted to the Rabies Service of the Epidemiology Department of the Institute for Health and Food Safety Zenica during 2009-2017 using the Antirabies Service Protocol was performed. The research was approved by the institutional review board.
Rabies PEP cases were recorded on the basis of a consultation with a doctor (epidemiologist) and resultant administration of PEP within 3 days after an animal bite.
The questionnaire contained data on the date (month/year) of the bite/scratch, name, age, sex, place of residence (municipality), anatomical site of the bite/scratch, type (source) of animal (domestic/wildlife; stray or self/neighbor-owned), veterinary observation of the animal, and whether antirabies PEP was received.
Surveillance, Prevention, and Control of Animal Rabies
In accordance with the Veterinary Law in B&H [14] and the State Veterinary Office decision on measures of control of infectious and parasitic diseases of animals [15], in all cases of a suspicion of animal infection or death, the animal owner must inform the nearest veterinary organization, which forwards the information to the inspector (official veterinary doctor). An authorized laboratory informs the competent inspector of the diagnostic results, and the inspector forwards the information to the authorized regional organization. In cases of a suspected or confirmed zoonosis, the veterinary inspector informs the competent health organization, as well as sending a regular monthly infectious diseases report (list A, B, and C) to the authorized veterinary organization. Rabies is included on list B (zoonoses, or diseases caused by various animal species) [14], and are subject of mandatory notification.

Prevention and Control of Human Rabies

A process for the prevention and control of human infectious diseases, including rabies, is defined by the law [16,17]. The authorized antirabies service (at the cantonal level) must (urgently) report all cases of bites/contact with rabid or rabies-suspected animals to the Federal Institution of Health using a legally prescribed form (questionnaire). In cases of clinically healthy dogs and cats, the animals should followed up for a 10-day period (the 1st, 5th, and 10th days after a bite/scratch), about which the veterinary doctor should inform an epidemiologist. Only if signs of disease appear in the 10-day follow-up period are laboratory tests performed.
The questionnaire should be filled out and forwarded to the entity Institute for Public Health (FB&H, RS, or BD, respectively). All actions relating to surveillance involve the consolidated Ministry of Civil Affairs B&H at the state level.
The National Reference Laboratories for rabies are located at the Veterinary Faculty of Sarajevo and at the Veterinary Institute in Banja Luka. Laboratories routinely perform fluorescent antibody tests.

RESULTS

During the 2009-2017 period, a total of 1716 persons were admitted to the Rabies Service of the Epidemiology Department of the Institute for Health and Food Safety Zenica after being bitten or scratched by a rabies-suspected animal. The highest prevalence of bites/scratches was noted in 2012, with 254 (14.8%) cases and in 2015, with 242 (14.1%) cases, resulting in incidence rates 63.58 and 60.99/100 000 population, respectively. Bites/scratches were most frequently noted during April and May (n=181, 10.5% and n=163, 9.5%, respectively) (Table 1).
The patients admitted to the Rabies Service were mostly from the Zenica municipality (n=1278, 74.5%, corresponding to an incidence of 11.55/100 000 population). Of note, the Zenica municipality is the most urbanized municipality in Zenica-Doboj Canton as a whole, with 66.6% of the population living in urbanized areas. The second highest incidence occurred in the Doboj Jug municipality, a 100% rural area (4.10/1000 population). In the Usora municipality, a 100% rural area, there were no registered cases (Table 2).
Males were more frequently represented than females (n= 1089, 63.6% and n=627, 36.5%, respectively). The average age of the bitten patients was 37.42 years (range, 1-86 years). The most commonly represented age groups were 50-64 years and 25-49 years (n=425, 24.7% and n=390, 22.7%, respectively). Dog bites accounted for the vast majority of cases (1634 of 1716, 95.1%), of which 1258 (77.0%) were caused by stray dogs. Cats were responsible for 63 (3.6%) bites, of which 46 (73.0%) were stray cats. Nineteen (1.1%) bites were caused by other animals: rats in 7 cases, mice in 3 cases, a doormouse in 1 case, a mole in 1 case, martens in 6 cases, and a rabbit in 1 case. Because it was impossible to put those animals under veterinary observation, antirabies PEP was mandatory in these cases.
Antirabies PEP was indicated in 997 (58.1%) patients, of whom 55 (14.0%) patients received PEP despite the fact that the bites were caused by a self-owned/neighbor-owned animal, either because it was not possible to conduct veterinary observation of the animals due to the owner’s lack of cooperation, or because the bite was on a specific anatomic site (head, fingers) with a shorter incubation period. Roughly 15% of the patients in whom PEP was indicated did not receive PEP. Approximately 60% of the patients promptly presented at the Antirabies Service within 3 days after the animal attack.
However, antirabies PEP was not indicated for 719 (41.9%) patients, although 380 (28.7%) of the bites were caused by stray animals.
Only 340 (of 1716; 19.9%) animals were underwent to 10-day veterinary observation, of which 40 (11.8%) stray and 300 (88.2%) self/neighbor owned animals. were self-owned/neighbor-owned animals. The vast majority of stray animals (n= 1282, 96.9%) did not undergo a 10-day veterinary observation. Among the 394 self-owned/neighbor-owned animals, 94 (23.9%) did not undergo a 10-day veterinary observation (Table 3). None of animals that underwent a 10-day observation showed signs of the disease.
The largest number of injuries were at the lower part of the lower extremity, in 715 (41.7%) cases, followed by the hand (upper extremity) in 221 (12.9%) cases. The forearm and fingers were affected in 127 (7.4%) and 76 (4.4%) cases, respectively, and the face, head, and neck in 45 (2.6%) cases. In 124 (7.2%) patients, injuries were present at multiple sites of the body (Table 4).

DISCUSSION

In the period of 2009-2017, there were no human rabies cases in the Zenica-Doboj Canton. In contrast, in a province in China, 21 human rabies cases were diagnosed from 2007 to 2014 [18]. During a period of 19.5 years, a total of 1839 rabies cases were registered in the Philippines, all patients died and most had an obvious history of an animal bite or scratch [2]. The last indigenous human rabies case in the territory of the former Yugoslavia (before 1991) was in 1974 [19].
The incidences of animal bites/scratches in this study is far lower than has been reported in some other regions of the world. In Lorestan Province (western Iran), an incidence of 223.23/100 000 population was recorded in 2004-2014 [1], and in Vietnam an even higher rate was noted of 429.55/100 000 in 2005-2015 [3].
Among our population, bites were most frequently recorded during the spring months (April and May), and the lowest incidence was observed in October. In contrast, human rabies cases have been more frequently reported in the summer and autumn [18] suggesting that farming activities during these months may be a risk factor for animal attacks [20]. Other studies attributed rabies seasonality to animal behavior (seeking food in the winter or early spring period) [21,22].
In our study, females were bitten half as often as males, which is a common finding on the world level [2,18,23]. All age groups were almost equally involved in our study, although the 50-64 age and ≥65 age groups were more frequently represented, similar to the findings of the report from China [18]. Children (less than 15 years of age) accounted for 26% of cases in our study, which is much lower than the world average of 40% [23]. Usually, adults are more commonly bitten than children according to most reports [2,18]. The average age of the bitten patients was 37.42 years in our study, suggesting that a younger population was involved in comparison with the average of 50 years in the report from China [18]. However, people of all ages can be bitten [2,18].
A significant number of patients were from the canton city capital; moreover, there were no cases reported from one 100% rural municipality. In the study from the Philippines, almost one-quarter of human cases derived from the city of Manila [2]. In a previous report, it was found that the majority of patients came from lower socioeconomic groups, with insufficient knowledge and/or resources, resulting in inappropriate medical care [2].
The largest number of injuries occurred on the lower and upper extremities, mostly on the lower part of the leg (41.7%) and on the hands (12.9%), respectively, which is logical because the legs are easy to access when attacking and because the hands can be used defensively. In 7.2% of patients injuries were present at multiple sites of the body, and they were associated with contusions and bone fractures because of the person’s inability to resist the animal attack successfully. Our findings are in concordance with other reports [2]. The prevalence of upper extremity and face/head/neck bites was non-negligible (27.6% and 2.6%, respectively); such bites are of concern, because they have a shorter incubation period before disease appearance than is the case for bites on the lower extremities [2].
Dog bites/scratches were most common, followed (with a much lower frequency) by cat bites, in which stray animals were mostly involved. Generally, domestic animals are vectors in 70% of cases, mostly dogs [2,18]. In the FB&H and BD, the population of dogs with a known owner is unknown, while in the RS, it is estimated to be 50 000. The stray dog population has posed a problem in both uburban and urban areas of Zenica-Doboj Canton since the end of the recent war (i.e., from 1996 onward). Two registered shelters exist in Zenica-Doboj Canton (in Zenica and Tešanj), but they are not capable to cover the entire stray dog population. Similarly, the population of foxes in the canton is not known.
In this study, PEP was indicated in 58.1% of patients. Although all patients were informed about the possible consequences after an animal bite, approximately 15% discontinued PEP treatment on their own initiative.
Antirabies PEP cases are recorded on the basis of a consultation with a doctor and the resultant administration of PEP, mostly within 3 days (or more) after a bite by an animal (mainly dogs) without accompanying laboratory confirmation [3]. Dimaano et al. [2] reported that in the Philippines, 92% of patients did not seek a proper medical consultation, and only 22.5% of patients received PEP, largely for cost reasons; Wallace et al. [24] reported that 20.8% of patients received PEP in Haiti, and Ren et al. [18] reported that only 1.1% of patients finished the full PEP regimen in China. An important public health task is to promote the safety and effectiveness of PEP in preventing rabies, with all its consequences, among all exposed persons [25].
From 1990 onwards, rabies was eradicated from terrestrial mammals (principally the red fox) in most Central and Western European countries through wild animal vaccination programs [26], resulting in rabies-free countries [27]. Despite vaccination programs, rabies is still endemic in many countries, largely as a result of financial limitations and poor infrastructure [27].
In the second half of 2010, a vaccination program in wildlife focusing on rabies that covered the whole territory of B&H was introduced. None of the tested foxes during vaccination monitoring program were positive; 70-80% of the tested foxes received the vaccine several times, and 50-75% of the foxes were immunized [26].
The continued vaccination of wildlife against rabies in B&H, as well as in other Balkan countries (Figure 1), especially in those neighboring B&H (Croatia, Serbia, and Montenegro) is an important consideration. Eleven oral vaccination campaigns have been completed, leading to reduced disease incidence and wildlife reservoirs. The number of rabies cases in B&H in foxes declined from 83 in 2008 to 0 during 2015-2016. The last case was observed in a fox in October 2013 in Laktaši, and the latest case of rabies in domestic animals was observed in a dog in September 2014 (Gradačac).
The vaccination, marking, and registry of dogs are the responsibility of authorized veterinary organizations/services on the municipality (community) level. Vaccination presently only depends on the initiative of the animal owner. A significant number of owners do not follow this mandatory legal obligation.
Control of the stray dog population is the responsibility of local communities. No unique registry of dog owners or records of the number of stray dogs exist. According to the study of Katica et al. [28] in the period 2008-2009, the number of stray dogs in the Zenica-Doboj Canton was almost half of the entire stray dog population of the 6 cantons of B&H (24.4% of the B&H territory), comprising a total of 10 000 (out of 22 050). Until 2009, when the law on animal welfare was passed, the problem of stray dogs was mainly solved by euthanizing the animals; again, Zenica-Doboj Canton had the highest number of euthanized dogs.
We have no exact data about the vaccination coverage of dogs in Zenica-Doboj Canton. All veterinary services are privatized, which additionally complicates the situation; the exact number of the dog population and the number of vaccinated or neutered dogs are not known. For now, only members of non-governmental organizations are working to implement the law against animal euthanasia.
The previous study conducted in China showed that the coverage of dog immunization in rural areas was only 1.2-2.8% [18], although better results (45%) were reported in the study from Haiti [24]. According to the WHO, 70% is a good coverage rate, but this rate can be difficult to achieve in developing countries [29]. In a study conducted in Malawi, although 97% of the dog population was owned, only 53%, out of the 79% examined dogs had been vaccinated at a station point, and 26% had been vaccinated by door-to-door vaccination [30]. Mazeri et al. [31] found that distance from the household and socioeconomic status played an important role in promoting attendance to vaccination services. Similar results were shown by Castillo-Neyra et al. [32].
Our study had several limitations. We lacked data on how many people were actually bitten by dogs and cats, since the recorded cases were only based on doctor consultations during which PEP was administered. It is likely that bites were underestimated, especially in rural/mountain communities.
In order to detect zoonotic pathogens as early as possible, zoonoses should be defined as a high priority. The USA Centers for Disease Control and Prevention developed the One Health Zoonotic Disease Prioritization tool as a multisectoral approach to rank a country’s zoonotic diseases, and most of the involved countries recorded the following zoonoses: influenza virus, rabies, brucellosis, and anthrax [33].
In conclusion, this study underscores the importance of reductions of the stray dog population, registration and preventive vaccination of dogs, enforcement of veterinary sanitary measures, cooperation with hunting organizations, and promotion and education for successful rabies control. The One Health framework, recently established at our institute, is an important step in the better prevention and control of zoonoses, including rabies and brucellosis, in Zenica-Doboj Canton.

CONFLICT OF INTEREST

The authors have no conflicts of interest associated with the material presented in this paper.

Figure. 1.
Balkan Peninsula.
jpmph-52-3-170f1.jpg
Table 1.
Seasonal distribution of patients with bites/scratches from rabies-suspected animals, 2009-2017
Month 2009 (400 602) 2010 (400 126) 2011 (399 856) 2012 (399 485) 2013 (398 655) 2014 (397 813) 2015 (396 732) 2016 (361 031) 2017 (361 031) Total
January 6 (4.0) 8 (5.2) 20 (9.1) 17 (6.7) 28 (13.4) 14 (8.4) 10 (4.1) 15 (8.3) 15 (10.4) 133 (7.7)
February 12 (8.0) 5 (3.3) 10 (4.5) 25 (9.8) 20 (9.5) 13 (7.8) 17 (7.0) 11 (6.1) 16 (11.1) 129 (7.5)
March 15 (10.0) 17 (11.2) 17 (7.7) 22 (8.6) 21 (10.0) 17 (10.2) 15 (6.2) 14 (7.7) 15 (10.4) 153 (8.9)
April 18 (12.0) 10 (6.5) 20 (9.1) 22 (8.6) 21 (10.0) 19 (11.4) 30 (12.4) 26 (14.4) 15 (10.4) 181 (10.5)
May 20 (13.3) 15 (9.9) 14 (6.3) 25 (9.8) 11 (5.2) 18 (10.8) 28 (11.6) 14 (7.7) 18 (12.5) 163 (9.5)
June 12 (8.0) 16 (10.5) 13 (5.9) 29 (11.4) 17 (8.1) 17 (10.2) 17 (7.0) 17 (9.4) 6 (4.2) 144 (8.4)
July 17 (11.3) 21 (13.8) 24 (10.9) 19 (7.4) 17 (8.1) 7 (4.2) 16 (6.6) 12 (6.7) 9 (6.3) 142 (8.3)
August 14 (9.3) 12 (7.9) 25 (11.3) 15 (5.9) 9 (4.3) 16 (9.6) 22 (9.1) 17 (9.4) 14 (9.7) 144 (8.4)
September 11 (7.3) 11 (7.2) 20 (9.1) 18 (7.0) 20 (9.5) 11 (6.6) 25 (10.3) 7 (3.9) 9 (6.3) 132 (7.7)
October 14 (9.3) 4 (2.6) 14 (6.3) 19 (7.4) 19 (9.0) 12 (7.2) 18 (7.4) 16 (8.9) 7 (4.9) 123 (7.1)
November 7 (4.6) 13 (8.5) 24 (10.9) 15 (5.9) 8 (3.8) 14 (8.4) 25 (10.3) 21 (11.7) 12 (8.3) 139 (8.1)
December 4 (2.6) 20 (13.2) 18 (8.1) 28 (11.0) 18 (8.6) 8 (4.8) 19 (7.9) 10 (5.6) 8 (5.6) 133 (7.7)
Total (of 1716) 150 (8.7) 152 (8.9) 219 (12.8) 254 (14.8) 209 (12.2) 166 (9.7) 242 (14.1) 180 (10.5) 144 (8.4) 1716 (100)
Incidence/100 000 37.44 37.98 54.76 63.58 52.42 41.72 60.99 49.85 39.88 -

Values are presented as number (%).

Table 2.
Distribution of patients with bites/scratches from rabies-suspected animals, 2009-2017, in the municipalities of Zenica-Doboj Canton
Municipality (No. of urban/rural population) [% urbanization] Patients presenting to the Epidemiology Department Incidence/1000 Population
Breza (3125/11 043) [23.0] 37 (2.1) 2.61 14 168 (3.9)
Doboj Jug (0/4137) [0.0] 17 (1.0) 4.10 4137 (1.1)
Kakanj (12 256/25 185) [32.7] 109 (6.3) 2.91 37 441 (10.3)
Maglaj (6438/16 708) [27.8] 29 (1.7) 1.25 23 146 (6.3)
Olovo (2568/7589) [25.4] 5 (0.3) 0.49 10 157 (2.8)
Tešanj (5531/37 532) [12.8] 66 (3.8) 1.53 43 063 (11.8)
Usora (0/6603) [0.0] 0 (0.0) 0.00 6603 (1.8)
Vareš (3117/5775) [35.1] 3 (0.2) 0.33 8892 (2.4)
Visoko (11 552/28 386) [28.9] 60 (3.5) 1.50 39 938 (11.0)
Zavidovići (9217/26 771) [25.6] 18 (1.0) 0.50 35 988 (9.9)
Zenica (73 751/36 912) [66.6] 1278 (74.5) 11.55 110 663 (30.4)
Žepče (5804/24 415) [19.2] 94 (5.5) 3.11 30 219 (8.3)
Total (126 940/237 493) [34.8] 1716 (100) 4.71 364 433 (100)

Values are presented as number (%).

Table 3.
Demographic characteristics of patients exposed to animal bites/scratches according to the animal source
Variable Stray animal Self-/neighbor-owned animal Total
Sex
 Male 848 (64.2) 241 (61.2) 1089 (63.6)
 Female 474 (35.8) 153 (38.8) 627 (36.5)
 Total 1322 (100) 394 (100) 1716 (100)
Age (y)
 0-6 92 (7.0) 72 (18.2) 164 (9.5)
 7-14 191 (14.4) 93 (23.6) 284 (16.5)
 15-24 154 (11.6) 49 (12.4) 203 (11.8)
 25-49 319 (24.1) 71 (18.0) 390 (22.7)
 50-64 356 (26.9) 69 (17.5) 425 (24.7)
 >65 210 (16.0) 40 (10.1) 250 (14.5)
 Total 1322 (100) 394 (100) 1716 (100)
Bite site
 Head, face, and neck 23 (1.7) 22 (5.6) 45 (2.6)
 Upper extremities 331 (25.0) 143 (36.3) 474 (27.6)
 Lower extremities 876 (66.3) 168 (42.6) 1044 (60.8)
 Trunk 14 (1.1) 15 (3.8) 29 (1.7)
 Multiple 78 (5.9) 46 (11.7) 124 (7.2)
 Total 1322 (100) 394 (100) 1716 (100)
Type of animal
 Dog 1258 (95.1) 376 (95.4) 1634 (95.1)
 Cat 46 (3.4) 17 (4.3) 63 (3.6)
 Other1 18 (1.3) 1 (0.2) 19 (1.1)
 Total 1322 (100) 394 (100) 1716 (100)
Antirabies postexposure prophylaxis indicated
 Yes 942 (71.3) 55 (14.0) 997 (58.1)
 No 380 (28.7) 339 (86.0) 719 (41.9)
 Total 1322 (100) 394 (100) 1716 (100)
Animals that underwent veterinary observations
 Yes 40 (3.1) 300 (76.1) 340 (19.9)
 No 1282 (96.9) 94 (23.9) 1376 (80.1)
 Total 1322 (100) 394 (100) 1716 (100)

Values are presented as number (%).

1 Rat (7), mouse (3), doormouse (1), mole (1), marten (6), rabbit (1).

Table 4.
Anatomical distribution of animal bites/scratches
Anatomical location n (%)
Head, face, and neck
 Head 6 (0.3)
 Face (forefront) 16 (0.9)
 Cheek 5 (0.3)
 Lip 7 (0.4)
 Ear 3 (0.2)
 Neck 8 (0.5)
 Total 45 (2.6)
Upper extremities
 Hand 221 (12.9)
 Forearm 127 (7.4)
 Finger 76 (4.4)
 Upper arm 29 (1.7)
 Elbow 10 (0.6)
 Palm 5 (0.3)
 Metacarpus 2 (0.1)
 Thumb 3 (0.2)
 Total 474 (27.6)
Lower extremities
 Lower leg 715 (41.7)
 Upper leg (thigh) 242 (14.1)
 Butt 41 (2.4)
 Knee 23 (1.3)
 Foot 12 (0.7)
 Heel 5 (0.3)
 Toe 1 (0.0)
 Ankle joint 5 (0.3)
 Total 1044 (60.8)
Trunk
 Thorax 13 (0.7)
 Back 7 (0.4)
 Abdomen 2 (0.1)
 Shoulder 7 (0.4)
 Total 29 (1.7)
Multiple sites 124 (7.2)
Total overall 1716 (100)

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