Fatal dog attacks are human victim's deaths caused by dogs. The study of fatal dog attacks can lead to prevention techniques which can help to reduce all dog bite injuries, not only fatalities. [1] Dog bites and attacks can result in pain, bruising, wounds, bleeding, soft tissue injury, broken bones, loss of limbs, scalping, disfigurement, life-threatening injuries, and death. [2]
There are several ways a person can die from a dog bite or a dog attack, including:
Determining the cause of death and understanding the extent of injuries often requires detailed forensic analysis, including examination of bite marks, trauma patterns, and other physical evidence. Fatal dog attacks often necessitate collaboration between forensic pathologists, forensic experts (DNA analysis), odontologists (for bite mark analysis), behavioral experts, animal control officers, and law enforcement to comprehensively assess the circumstances surrounding the incident. These cases can involve certain complexities, such as determining liability, identifying the dog or dogs that attacked, and assessing any negligence on the part of owners or other parties involved. [10]
Whether a dog owner is legally responsible for a fatal dog attack depends on various factors, including the jurisdiction's laws and the circumstances surrounding the incident. In many places, dog owners can be held liable for injuries or fatalities caused by their dogs. Proving that a specific dog attacked can be necessary to hold someone legally responsible. Physical evidence such as saliva, fur, or skin cells left behind at the scene of the bite can be collected and analyzed for DNA matching to determine if it matches the suspected dog. Experts may examine the bite marks on the victim's body to assess characteristics such as size, shape, and pattern, which can sometimes be matched to the dental impressions of a specific dog. Since this methods can't always be applied (efforts to keep the victim alive for example can erase a dog’s biological traces), researchers from Italy suggested an additional method to prove the involvement of a specific dog. They suggested to detect the victim's profile in the dog's mouth through buccal swabs on the suspected dog. Further methods to identify an offending dog include witness statements, CCTV footage, 3D modelling to show matches between the wound and a specific dog's dental arches (applicable if the dogs in question have different characteristics) or genetic analysis of the dog hairs. [28]
Scientists, scholars, medical personnel, veterinarians, and lawmakers have been documenting the societal problem of fatal dog attacks for several decades in an effort to identify causes and come up with solutions. [29]
Stray dog attacks are very common in India and other countries with a high population of free-ranging dogs. Since these attacks frequently lead to deaths, governments are under pressure to address the problem. [30] [31] Researchers from Argentina and India looked at problems related to free-ranging dogs in exemplary regions in South America and India. Free-ranging dogs can carry and transmit diseases such as rabies, which can be fatal to humans if not treated promptly. The researchers argue for evidence-based legislation and consensus-building, among other measures, to mitigate the negative impacts of free-ranging dogs, thereby reducing potential harm to humans and other animals. [32]
Researchers looked at the epidemiological profile of dog attacks to patients under 14 years old assisted at the pediatric referral emergency unit of a tertiary hospital in Campinas, Brazil. This study did not find any death records at this hospital, but made a note on the age of the victims of fatal dog attacks: "Some accidents might be serious and result in death, while accidents, even if not so serious, might result in irreversible consequences. There is some evidence that 56% of casualties related to dog bites occur with children under 16 years old." [33]
The Swedish scientists looked at the consequences of dog bites and deaths caused by dogs. Fatal dog attacks are rare in Sweden, but as in other European countries, there is an increasing trend. The severity of the damage caused by dogs ranges from scratches to loss of limbs. Attacks by several dogs and by certain types of dogs are described as particularly dangerous. The researchers came to the conclusion that certain types of dogs cause particularly serious injuries due to their way of biting, holding and shaking the victim. The Rottweiler, American Bulldog, Cane Corso, Japanese Tosa and Pit Bull are named as dogs that can kill an adult human without difficulty. Breeds such as the American Staffordshire Terrier, the Rottweiler and the German Shepherd caused the most serious injuries in the studies mentioned. The Swedish deaths in 2018 and 2019 were caused by a dog of the American Bulldog breed and a dog of the American Staffordshire Terrier/Rottweiler crossbreed.
The researchers recommend that physicians treating minors with injuries from a dog attack notify the competent social authorities, as they consider the risk of further incidents to be increased. In 2022, a dog owner in Sweden was killed by her American Staffordshire Terrier. The same dog had attacked and severely bitten her two-year-old grandson two years earlier, but the police stopped the investigation and no report was made to the relevant authorities.
The authors see a change in the way people keep and interact with dogs, as well as a higher proportion of high-risk breeds in the population, as a possible explanation for the increase in fatalities. Strongly built and "hard biting" dogs are very popular in Sweden and, according to the authors, pose a serious risk when kept in families with children. Older people are also considered to be particularly susceptible to attacks by powerfully built dogs. The scientists refer to an Australian study which states that the risk of injury from being pushed by a dog is particularly high in older people. The authors see imported and smuggled dogs as a further health risk, as they often appear in cases of assault and carry the additional risk of rabies infection. [34]
The authors of the study "Bitten or struck by dog: A rising number of fatalities in Europe, 1995–2016" looked at data officially recorded by Eurostat with the ICD-10 cause of death code W54 Bitten or struck by dog for 30 European countries. This data excludes death due to complications after dog bites like infections. For 2016 they found 45 recorded deaths, corresponding to a rate of 0.009 per 100,000 residents. They come to the conclusion that "the number of European fatalities due to dog attacks increased significantly at a rate of several % per year 1995–2016." The looked at the impact of age, gender and geography. They state that people younger than 10 and older than 39 are more likely to be killed by dogs and male victims are overpresented in certain age groups and regions. The study names Hungary, France, Romania, UK, Poland and Finland as high-incidence countries. Severe and fatal dog attacks have in common that the dog or dogs involved carry out multiple, targeted bites (focused bites to bring the victim down and subsequent bites to the neck and face) and shaking until the victim ceases movement. It is also described that difficulties to stop a dog from attacking are common in fatal attacks. The researchers suggest more detailed national and regional studies to be carried out, since the increase in death could not be explained by the population increase of humans and dogs. The data available for this study lacked details of the circumstances and contributing factors of a fatal attack. They mention that research by other scientists utilizing media reports, legal proceedings, and surveys has already shed some light on the contexts of these fatal incidents. [35]
In the study "Fatal dog attacks in Spain under a breed-specific legislation: A ten-year retrospective study" researchers from Spain and Chile examined fatal dog attacks that occurred in Spain within a ten-year period. They analyzed data from records of fatal dog attacks in Spain from 2004 to 2013 and examined the interplay among factors related to the victim, the dog, and the circumstances of the attack. A secondary aim was to assess the consistency between the dogs implicated in fatal attacks and those identified in Spanish legislation as potentially dangerous dogs (perros potencialmente peligrosos). Fatal dog bites in Spain average 1.6 deaths annually, corresponding to a rate of 0.003 per 100,000 residents. The study identified 16 cases of fatal dog attacks resulting in 17 deaths, with a predominance of male victims. The mean age of the victims is 46 years, with significant representation from both older adults and young children. Fatal attacks occur across multiple provinces, with Barcelona showing the highest incidence followed by Tenerife. According to the study many of the dogs involved in these fatal incidents are classified as potentially dangerous dogs under Spanish legislation, which includes Pit Bull Terrier, Staffordshire Bull Terrier, American Staffordshire Terrier, Rottweiler, Bullmastiff, Neapolitan Mastiff, Argentina Mastiff, Bordeaux Mastiff, Canary Fighting Dog (Presa Canario), Fila Brasileiro, Doberman, Tosa Inu, Akita Inu, and their mixes as well as dogs declared dangerous by a veterinarian. The authors advocate for further research and the establishment of a national reporting system on dog bites and attacks and recommend utilizing a multidisciplinary approach to better understand and prevent such incidents in the future. Moreover, they note that other experts advocate for the necessity of conducting epidemiological studies in each country or region where prevention strategies are to be implemented. This is because the impact of risk factors may vary from one location to another. In every cultural context, devising prevention strategies for dog bites would be enhanced by assessing the types of human-canine interaction or environmental factors that commonly expose dogs to situations where they are prone to resort to biting. [36]
Spain identifies three categories of potentially dangerous dogs, which all have restrictions placed upon ownership. Those include specific breeds, dogs with specific appearances and dogs who have behaved dangerously in the past. [37]
The most recent study of the epidemiology of fatal dog bites in the United States was published in the Journal of the American Veterinary Medical Association (AVMA) in 2013. [38] While earlier studies were based on television and newspaper reports, this was the first study to be based on law-enforcement reports, animal control reports, and investigator statements. It identified preventable factors in the fatal incidents. They found that the most common contributing factors were: absence of an able-bodied person to intervene, no familiar relationship of victims with dogs, owner failure to neuter dogs, compromised ability of victims to interact appropriately with dogs (e.g. mental disabilities), dogs kept isolated from regular positive human interactions versus family dogs (e.g. dogs kept chained in backyards), owners' prior mismanagement of dogs, and owners' history of abuse or neglect of dogs. Furthermore, they found that in 80% of the incidents, 4 or more of the above factors co-occurred.
The authors found that in a significant number of DBRFs there was either a conflict between different media sources reporting breed and/or a conflict between media and animal control reports relative to the reporting of breed. For 401 dogs described in various media accounts of DBRFs, media sources reported conflicting breed attributions for 124 of the dogs (30.9%); and where there were media reports and an animal control report (346 dogs), there were conflicting breed attributions for 139 dogs (40.2%)
According to this study, reliable verification of the breed of dog was only possible in 18% of incidents.
This 27-year study published in the Wilderness & Environmental Medicine, collected data from the CDC Wide-Ranging OnLine Data for Epidemiologic Research (CDC WONDER) program. [16] It looked at cases in which the cause of death according to International Classification of Diseases (ICD) codes was dog bites. It did not include fatalities secondary to an infection from a bite. During those 27 years, 504 deaths due to dog bites were reported (an average of 18.67 per year) to have occurred in every state except North Dakota. Six states (Texas, California, Florida, Illinois, Georgia and North Carolina) accounted for 37% of the reported cases (but they also compose 36% of the US population). The number of deaths per capita were highest in Alaska (11.83 deaths per 10 million inhabitants); the rest of the states ranged from 0 to 2.56 deaths per 10 million population. Most fatal dog bites occur in young children and the elderly. Elderly victims have a higher in-hospital fatality rate after the trauma compared to younger victims. [16]
The study indicated that, in the US, incidents of dog-related injury and death increased along with the increases in dog and human populations. Males and children comprised the majority of fatal dog attacks, with children under age 10 representing 70% of deaths from dog bites from 1979 to 1988. Males comprised 58.1% of the reported cases whereas females comprised 41.9%, compared to the US population with 48.87% males and 51.13% females. With respect to race percentages of victims, 81.3% were white (M: 46.8%, F: 34,5%), 14.3% were black (M: 8.5%, F: 5.7%) and 4.4% were listed as "other". When compared to the US population, there was no significant difference in frequency of dog-related deaths in relation to race; the study indicated the percentages of dog ownership to be 92% white, 3% black and 3% other races; however, it is important to note that most of the available data did not report the race of the victim. [16]
At the time of the study, some of the limitations included the lack of information regarding many important factors about the reported attacks, such as the activity that was taking place at the time, whether or not it was provoked, a positive identification of the dog's breed, size and whether it was neutered or spayed, the health of the dog and victim, location of the wounds and other relative information. There is also the possibility that a few of the reported dog bite deaths had been miscoded or possibly omitted in cases where the cause of death was secondary to the bite. A mandatory national registration system on all animal attacks with detailed information was advised in an effort to provide more insight into the factors leading up to the attack. [16]
A joint project between researchers in the Centers for Disease Control and Prevention (CDC), Humane Society of the United States (HSUS) and American Veterinary Medical Association (AVMA), this study [39] published in 2000 evaluated 20 years (1979-1998) of fatalities by using 18-years of data collected previously for similar studies, newly identified data from media reports for 1997-1998, and a database from HSUS. The purpose was to summarize breeds associated with reported human DBRF during a 20-year period and assess policy implications.
The authors postulated that the resulting tabulations by breed may be biased due to four factors: that their method of searching for DBRFs by using NEXIS to locate media reports was likely to only discover about 74% [40] of the actual incidents; that dog attacks involving certain breeds may be more likely to have received media coverage in the first place; that identifications of the dog's breed is often subjective (causing possible misreporting of breed); and that the researchers weren't sure how to account for crossbreed dogs (more than one breed in a single dog).
The study defined dog attacks as "a human death caused by trauma from a dog bite". Excluded from the study were deaths by disease caused by dog bites, strangulation on a scarf or leash pulled by a dog, heart attacks or traffic accident, and falling injury or fire ant bites from being pushed down by a dog. The study also excluded four deaths by trauma from dog bites by police dogs or guard dogs employed by the government.
After excluding approximately 90 deaths from the study because no breed information was available, the researchers ended up with 238 deaths for their 20-year analysis representing 25 breeds of dog, or 227 deaths for which they had additional data for analysis. Using the 227 collection: 133 (58%) were unrestrained dogs and on the owners' property; 55 (24%) were loose off the owners' property; 38 (17%) were restrained dogs on their owners' property; and only one (less than 1%) was restrained off the owners' property. [39]
The authors expressed disappointment that they could not adequately evaluate a "risk rate" for each dog breed (number of fatalities divided by the number of dogs), citing unavailability of population figures for each breed. Instead, they simply tabulated the fatalities by breed. Despite that limitation, the data indicated that Rottweilers and pit bull-type dogs accounted for 67% of human DBRF in the United States between 1997 and 1998, and followed with "It is extremely unlikely that they accounted for anywhere near 60% of dogs in the United States during that same period and, thus, there appears to be a breed-specific problem with fatalities."
In the 20 years from 1979 to 1998, the breeds of dogs involved were as follows:
Death-based approach (each breed counted only once per fatal incident): Pit bull-type 76; Rottweiler 44; German Shepherd 27; Husky-type 21; Malamute 15; Wolf-dog 14; Mixed-breed 12; Chow 11; Doberman 10; St. Bernard 8; Great Dane 7; Labrador 5; Akita 4; 3 each of Sled dog, Bulldog, Mastiff, Boxer, Collie; 2 each of Bullmastiff, Hound-type; 1 each of Retriever-type, Chesapeake Bay Retriever, West Highland Terrier, Terrier-type, Japanese Hunting Dog, Newfoundland, Coonhound, Sheepdog, Australian Shepherd, Rhodesian Ridgeback, Cocker Spaniel.
Dog-based approach (each dog counted, even in multi-dog fatal incidents): Pit bull-type 118; Rottweiler 67; Mixed-breed 47; German Shepherd 41; Chow 21; Husky-type 21; Malamute 16; Wolf-dog 15; Doberman 13; Great Dane 13; Sled-dog 12; Labrador 8; St. Bernard 8; Collie 6; Boxer 5; Mastiff 5; Akita 4; Bulldog 3; Australian Shepherd 3; Bullmastiff 2; Hound-type 2; and 1 each of Chesapeake Bay Retriever, Cocker Spaniel, Coonhound, Japanese Hunting Dog, Newfoundland, Retriever-type, Rhodesian Ridgeback, Sheepdog, Terrier-type, West Highland Terrier.
The authors attempted to evaluate efficacy of breed-specific legislation (BSL) as well as generic non-breed-specific dangerous dog laws, listed some of the difficulties of enforcement and touched on several of the factors, but did not have any recommendations — citing that they were unaware of any formal evaluation of effectiveness of BSL or general non-BSL dangerous dog laws in preventing fatal or nonfatal dog bites.
Some other recommendations by the authors included:
Collecting data from HSUS, Nexis and death certificates, this 1997 write-up [41] analysed 279 USA dog-bite related deaths from 1979-1994, briefly mentioned three specific cases from 1995-1996, and tabulated breed-specific data from 1979-1996.
Of the 199 incidents in which breed was known, the report tabulates the breeds by most fatalities first, presenting: Pit bull 60, Rottweiler 29, German shepherd 19, Husky 14, Malamute 12, Doberman 8, Chow 8, Great Dane 6, St. Bernard 4, Akita 4.
For crossbreeds, they present: Wolf hybrid 14, German shepherd 11, Pit bull 10, Husky 6, Malamute 3, Rottweiler 3, Chow 3.
The report suggested improvements in three categories for preventing dog bites: owner and public education, better enforcement by animal control, and better bite reporting for future analyses.
A study [42] conducted at the University of Texas Southwestern Medical School identified 74 fatal dog bites during the period 1966–1980 from news media and medical literature.
Summary of some of the findings:
The first epidemiological study of dog-bite fatalities in the United States was conducted by an epidemiologist with the Centers for Disease Control and Prevention (CDC) in 1977. [43]
The study covers eleven fatality cases. Based on circumstances in each case, the author theorizes that most of the fatalities were territorial issues (in the dog's mind). He also concludes that most fatal attacks by dogs were initiated with intent to kill. He concludes this by comparing the 75% of these cases of attack by a single dog (which attacked the head and neck) to the statistic that 75% of nonfatal attack wounds are being inflicted on extremities (which are not usually fatal).
The author also rues the lack of "comprehensive surveillance" of dog bite related fatalities, and counsels that fatalities should be examined to determine the magnitude of the problem and to identify causative factors which can be eliminated to reduce fatalities.
Pit bull is an umbrella term for several types of dog believed to have descended from bull and terriers. In the United States, the term is usually considered to include the American Pit Bull Terrier, American Staffordshire Terrier, American Bully, Staffordshire Bull Terrier, and sometimes the American Bulldog, along with any crossbred dog that shares certain physical characteristics with these breeds. In other countries, including the United Kingdom, the term is used as an abbreviation of the American Pit Bull Terrier breed specifically, while the Staffordshire Bull Terrier is not considered a pit bull. Most pit bull–type dogs descend from the British bull and terrier, a 19th-century dog-fighting type developed from crosses between the Old English Bulldog and the Old English Terrier.
The Staffordshire Bull Terrier, also called the Staffy or Stafford, is a purebred dog of small to medium size in the terrier group that originated in the northern parts of Birmingham and in the Black Country of Staffordshire, for which it is named. They descended from 19th-century bull terriers that were developed by crossing bulldogs with various terriers to create a generic type of dog generally known as bull and terriers. Staffords share the same ancestry with the modern Bull Terrier, although the two breeds developed along independent lines, and do not resemble each other. Modern Staffords more closely resemble the old type of bull terrier, and were first recognised as a purebred dog breed by The Kennel Club of Great Britain in 1935.
The Rottweiler is a breed of domestic dog, regarded as medium-to-large or large. The dogs were known in German as Rottweiler Metzgerhund, meaning Rottweil butchers' dogs, because their main use was to herd livestock and pull carts laden with butchered meat to market. This continued until the mid-19th century when railways replaced droving. Although still used to herd stock in many parts of the world, Rottweilers are now also used as search and rescue dogs, guard dogs, and police dogs.
In law, breed-specific legislation (BSL) is a type of law that prohibits or restricts particular breeds or types of dog. Such laws range from outright bans on the possession of these dogs, to restrictions and conditions on ownership, and often establishes a legal presumption that such dogs are dangerous or vicious to prevent dog attacks. Some jurisdictions have enacted breed-specific legislation in response to a number of fatalities or maulings involving pit bull–type dogs or other dog breeds commonly used in dog fighting, and some government organizations such as the United States Army and Marine Corps have taken administrative action as well. Due to opposition to such laws in the United States, anti-BSL laws have been passed in 21 of the 50 state-level governments, prohibiting or restricting the ability of jurisdictions within those states to enact or enforce breed-specific legislation.
A Schnauzer is a dog breed type that originated in Germany from the 14th to 16th centuries. The term comes from the German word for "snout" and means colloquially "moustache", or "whiskered snout", because of the dog's distinctively bearded snout. Initially it was called Wire-Haired Pinscher, while Schnauzer was adopted in 1879.
The Dangerous Dogs Act 1991 is an act of the Parliament of the United Kingdom prohibiting or restricting certain types of dogs and codifying the criminal offence of allowing a dog of any breed to be dangerously out of control. After a series of eleven dog attacks in 1991, Home Secretary Kenneth Baker promised "to rid the country of the menace of these fighting dogs". The Act has been controversial for failing to stem the rise of dog attacks and for focusing on a dog's breed or looks instead of an individual dog's behaviour.
The American Pit Bull Terrier (APBT) is a dog breed recognized by the United Kennel Club (UKC) and the American Dog Breeders Association (ADBA), but not the American Kennel Club (AKC). It is a medium-sized, short-haired dog, of a solid build, whose early ancestors came from England. When compared with the English Staffordshire Bull Terrier, the American Pit Bull Terrier is larger by margins of 6–8 inches (15–20 cm) in height and 25–35 pounds (11–16 kg) in weight. The American Pit Bull Terrier varies in size: males are normally about 18–21 inches (45–53 cm) in height and around 35–60 pounds (15–27 kg) in weight, while females are normally around 17–20 inches (43–50 cm) in height and 30–50 pounds (13–22 kg) in weight.
Dog aggression expressed by dogs is considered to be normal behaviour and various types of aggression are influenced by a dog's environment and genetic predisposition. Dogs commonly display possessive aggression when defending resources or themselves.
The Dobermann is a German breed of medium-large working dog of pinscher type. It was originally bred in Thuringia in about 1890 by Louis Dobermann, a tax collector. It has a long muzzle and – ideally – an even and graceful gait. The ears were traditionally cropped and the tail docked, practices which are now illegal in many countries.
A dog bite is a bite upon a person or other animal by a dog. More than one successive bite is often called a dog attack, although dog attacks can include knock-downs and scratches. Though some dog bites do not result in injury, they can result in infection, disfigurement, temporary or permanent disability, or death. Another type of dog bite is the "soft bite" displayed by well-trained dogs, by puppies, and in non-aggressive play. Dog bites can occur during dog fighting, as a response to mistreatment, by trained dogs working as guard, police or military animals, or during a random encounter.
Cancer is the leading cause of death in dogs. It is estimated that 1 in 3 domestic dogs will develop cancer, which is the same incidence of cancer among humans. Dogs can develop a variety of cancers and most are very similar to those found in humans. Dogs can develop carcinomas of epithelial cells and organs, sarcomas of connective tissues and bones, and lymphomas or leukemias of the circulatory system. Selective breeding of dogs has led certain pure-bred breeds to be at high-risk for specific kinds of cancer.
Fatal dog attacks in the United States cause the deaths of thirty to fifty people each year. According to the National Center for Health Statistics, there were 468 deaths in the United States from being bitten or struck by a dog between 2011 and 2021. This is an average of 43 deaths annually, ranging from a low of 31 deaths in 2016 and a high of 81 deaths in 2021. Dogs killed more males than females during the tracking decade. Children between the ages of one to four are most often the victims, accounting for 29.4% of the fatalities from dog attacks in 2022; those under the age of seventeen accounted for 56.7% of all fatalities that year.
Dogs in the United States have significant popularity and status – they are often treated as family members. Currently, the American Kennel Club is the largest registry of pure breed dogs across the world.
Animal attacks are violent attacks caused by non-human animals against humans, one of the most common being bites. These attacks are a cause of human injuries and fatalities worldwide. According to the 2012 U.S. Pet Ownership & Demographics Sourcebook, 56% of United States citizens owned a pet. In the United States in 1994, approximately 4.7 million people were bitten by dogs. The frequency of animal attacks varies with geographical location, as well as hormonal secretion. Gonad glands found on the anterior side of the pituitary gland secrete androgen and estrogen hormones. Animals with high levels of these hormones, which depending on the species can be a seasonal occurrence, such as during rutting season, tend to be more aggressive, which leads to a higher frequency of attacks not only to humans but among themselves. In the United States, a person is more likely to be killed by a domesticated dog than they are to die from being hit by lightning according to the National Safety Council.
DogsBite.org is a nonprofit organization that publishes accounts of and compiles statistics of dog bite related fatalities throughout the United States, victim testimonies, an overview of breed-specific legislation within the United States, and advocates for victims of dog bites by promoting breed-specific legislation as a means to reduce serious dog attacks. The organization provides statistics and information to news organizations and has filed amicus briefs in court cases related to breed-specific legislation. The organization has been criticized for publishing misleading or inaccurate information.
The National Canine Research Council (NCRC) is an animal advocacy group, originally started by Karen Delise, a veterinary technician. It was later acquired by Jane Berkey, the owner of Animal Farm Foundation and registered as National Canine Research Council, LLC in 2007. Its current website describes itself as "A Research & Policy Think Tank". The National Canine Research Council is a subsidiary of Animal Farm Foundation (AFF). The AVMA has published National Canine Research Council articles and also receives funding from Animal Farm Foundation. The National Canine Research Council has an associated 501(c)(4) fund called the National Canine Research Council Action Fund, which can directly support lobbying and political activities.