The examples and perspective in this article may not represent a worldwide view of the subject.(April 2019) |
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. [1] According to the 2012 U.S. Pet Ownership & Demographics Sourcebook, 56% of United States citizens owned a pet. [2] In the United States in 1994, approximately 4.7 million people were bitten by dogs. [3] 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. [4] 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. [5]
Animal attacks have been identified as a major public health problem. In 1997, it was estimated that up to 2 million animal bites occur each year in the United States. [6] Injuries caused by animal attacks result in thousands of fatalities worldwide every year. [7] "Unprovoked attacks occur when the animal approaches and attacks a person(s) who is the principal attractant, for example, predation on humans ..." [8] [9] All causes of death are reported to the Centers for Disease Control and Prevention each year. Medical injury codes are used to identify specific cases. [6] The World Health Organization uses identical coding, though it is unclear whether all countries keep track of animal-related fatalities. Though animals, excluding some tigers, do not regularly hunt humans, there is concern that these incidents are "bad for many species 'public image'."
Animal bites are the most common form of injury from animal attacks. The U.S. estimated annual count of animal bites is 250,000 human bites, 1 to 2 million dog bites, 400,000 cat bites, and 45,000 bites from snakes. [2] Bites from skunks, horses, squirrels, rats, rabbits, pigs, and monkeys may be up to one percent of bite injuries. Unprovoked pet ferret attacks have caused serious facial injuries. Non-domesticated animals, although assumed to be more common, especially as a cause of rabies infection, make up less than one percent of reported bite wounds. Bites to the right arm are the most likely due to defensive reactions when the victim uses their dominant arm. The most common location for fatal bites is on the individual's head. [10] It is estimated that three-quarters of bites to humans are to the arms or legs. Bites to the face constitute only ten percent of total bites. Children aged ten and younger suffer two-thirds of reported bite injuries. Bite injuries are often the result of an animal attack, including instances when a human attacks another human. Human bites are the third most frequent type of bite after dog and cat bites. [11] Dog bites are commonplace, with children the most frequently bitten and the face and scalp the most common targets. [12]
Animal bites carry an increased risk of infection due to their exposure to rabies and different bacteria that animals have in their oral cavity. Microbiological studies are carried out to determine some of these infections. Frequently these infections are polymicrobial with different mixtures of aerobic and anaerobic microorganisms. Some of the bacteria identified by the remains that are maintained in the bites and by exposure to other variables and change of physical environment are: Pasturella spp., Streptococcus, Staphylococcus, Moraxella, Corynebacterium, Neisseria, Fusobacterium, Bacteroides, Posphuomonoa, Capnocytophaga canimorsus, and Prevotella. [13]
Treatment for those who have been attacked depends on the injuries. Though trauma may be addressed first, subsequent infections are also treated with appropriate antibiotics. [11] The use of prophylactic antibiotics can significantly reduce the risk of a serious infection in the lesion. [14] It is important to visit a doctor if the bite is severe. Up to three-quarters of dog bites happen to those younger than 20 years old. In the United States, the costs associated with dog bites are estimated at over $1 billion annually. The age groups that suffer most from dog bites are children 5 to 9 years old. Often bites go unreported and receive no medical treatment. Up to one percent of pediatric emergency room visits are for animal bites. This is more frequent during the summer months. Up to five percent of children receiving emergency care for dog bites are hospitalized. Bites typically occur in the late afternoon and early evening. Girls are bitten more frequently by cats than by dogs, while boys are bitten by dogs two times more often than are girls. [11] To prevent serious and even fatal infections, rabies vaccines for both humans and non-human animals are recommended, even if the person is not directly exposed to the infection. In addition, it is essential to know and consider the probability of transmission, the animal that caused the bite, the type and severity of the injury, and the age and overall health of the victim.[ citation needed ] In 1936, amputation was required in a third of cases in which treatment was delayed for 24 hours or longer. [11]
Injuries resulting from encounters with animals occur with sufficient frequency to require the use of medical codes by clinicians and insurance companies to document such encounters. The ICD-10-CM Diagnosis Codes are used for the purpose of clearly identifying diseases, their causes, injuries in the United States. Clinicians use these codes to quantify the medical condition and its causes and to bill insurance companies for the treatment required as a result of encounters with animals.
Code | Description |
---|---|
W53 | Contact with rodent |
W54 | Contact with dog |
W55 | Contact with other mammals |
W56 | Contact with non-venomous marine animal |
W57 | Bitten or stung by non-venomous insect and other non-venomous arthropods |
W58 | Contact with crocodile or alligator |
W59 | Contact with other non-venomous reptiles |
W61 | Contact with birds (domestic) (wild) |
W62 | Contact with non-venomous amphibians |
Reference: [15] |
Year | Name | Age | Details |
---|---|---|---|
ca 1000 BC | Parikshit | n.a. | Bit by a snake |
30 BC | Cleopatra | 39 years | Bit by a snake (suicide) |
519 | Conleth | ~60 years | Killed by wolves |
912 | Oleg the Wise | n.a. | Bit by a snake |
ca 1500 | Lakṣmīpriyā | n.a. | Bit by a snake |
1528 | Tenali Rama | 47 years | Bit by a snake |
1582 | Crocodiles in Pskov | various | Number of crocodiles escaped from captivity to a local river, then reportedly attacked and devoured many city residents [16] |
1787 | Two-Headed Boy of Bengal | 4 years | Bit by a snake |
1852 | HMS Birkenhead | various | Hundreds of sharks attacked sinking ship sailors. A few hundreds men were killed |
1898 | Lions of Tsavo | various | A pair of lions attacked rail workers' camps for months. Killed 30-125 men |
1913 | Carl Hagenbeck | 57 years | Bit by a snake |
1920 | King Alexander of Greece | 27 years | Monkey bite |
1932 | Bill Pickett | 61 years | killed by a horse kick |
1942 | USS Juneau | various | Sharks attacked sinking ship sailors, including remaining Sullivan brothers |
1945 | USS Indianapolis | various | Hundreds of sharks attacked sinking ship sailors. A few dozen to 150 men were killed |
1945 | Battle of Ramree Island | various | Number of saltwater crocodiles attacked retreating Japanese soldiers. A few to hundreds were killed |
1948 | Grace Olive Wiley | 65 years | Bitten by a snake |
1950 | Kevin Budden | 20 years | Bitten by a taipan snake |
1955 | George Hensley | 74 years | Bit by a snake |
1957 | Karl Patterson Schmidt | 67 years | Bit by a snake |
1975 | Robert Mertens | 81 years | Bit by a snake |
1980 | Azaria Chamberlain | 2 months | Attacked by a dingo [17] |
1982 | Jean Batten | 73 years | Infection from a dog bite |
1993 | John Pickard | 80 years | killed by a bull on his family farm |
1994 | Allen Campbell | 37 years | Crushed by circus elephant Tyke |
1994 | Rick Lomba | 44 years | Attacked by Bengal Tiger |
2001 | Joseph Bruno Slowinski | 38 years | Bitten by a Suzhen's krait |
2001 | Diane Whipple | 33 years | Attacked by 2 dogs |
2001 | Jacky Boxberger | 51 years | Attacked by an elephant on a safari |
2003 | Timothy Treadwell | 46 years | Devoured by a bear [18] |
2003 | Vitaly Nikolayenko | 65 years | Mauled by a bear [19] |
2004 | Boonreung Buachan | 35 years | Bit by a cobra during a show |
2005 | Kenton Joel Carnegie | 22 years | Killed by wolves |
2006 | Richard Root | 68 years | Killed by a crocodile |
2006 | Steve Irwin | 44 years | Killed by a stingray during a diving expedition [20] |
2006 | Ali Khan Samsudin | 48 years | Bitten by a king cobra [21] |
2007 | Surinder Singh Bajwa | 44 years | Attacked by a group of rhesus macaques at his home and fell from a first-floor balcony |
2008 | Stephan Miller | 39 years | killed by a bear while making a promotional video |
2009 | Alexis Martínez | 29 years | killed by an orca (named Keto) in an aquarium |
2009 | Taylor Mitchell | 19 years | Coyote attack [22] |
2010 | Dawn Brancheau | 40 years | Killed by orca Tilikum |
2011 | Horatio Chapple | 17 years [23] | Killed by a polar bear on an Arctic expedition |
2011 | Mathieu Schiller | 32 years | Killed by a shark |
2013 | Noah and Connor Barthe | 4 & 6 years | Strangled by a friend's father's pet African rock python |
2014 | Jamie Coots | 42 years | Bit by a rattlesnake |
2015 | Katherine Chappell | 29 years | Killed by a lion while visiting a park |
2017 | Akbar Salubiro | 25 years | Killed and swallowed by a reticulated python |
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.
A snakebite is an injury caused by the bite of a snake, especially a venomous snake. A common sign of a bite from a venomous snake is the presence of two puncture wounds from the animal's fangs. Sometimes venom injection from the bite may occur. This may result in redness, swelling, and severe pain at the area, which may take up to an hour to appear. Vomiting, blurred vision, tingling of the limbs, and sweating may result. Most bites are on the hands, arms, or legs. Fear following a bite is common with symptoms of a racing heart and feeling faint. The venom may cause bleeding, kidney failure, a severe allergic reaction, tissue death around the bite, or breathing problems. Bites may result in the loss of a limb or other chronic problems or even death.
An animal bite is a wound, usually a puncture or laceration, caused by the teeth. An animal bite usually results in a break in the skin but also includes contusions from the excessive pressure on body tissue from the bite. The contusions can occur without a break in the skin. Bites can be provoked or unprovoked. Other bite attacks may be apparently unprovoked. Biting is a physical action not only describing an attack but it is a normal response in an animal as it eats, carries objects, softens and prepares food for its young, removes ectoparasites from its body surface, removes plant seeds attached to its fur or hair, scratching itself, and grooming other animals. Animal bites often result in serious infections and mortality. Animal bites not only include injuries from the teeth of reptiles, mammals, but fish, and amphibians. Arthropods can also bite and leave injuries.
Rat-bite fever (RBF) is an acute, febrile human illness caused by bacteria transmitted by rodents, in most cases, which is passed from rodent to human by the rodent's urine or mucous secretions. Alternative names for rat-bite fever include streptobacillary fever, streptobacillosis, spirillary fever, bogger, and epidemic arthritic erythema. It is a rare disease spread by infected rodents and caused by two specific types of bacteria:
The health of dogs is a well studied area in veterinary medicine.
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.
Neglected tropical diseases (NTDs) are a diverse group of tropical infections that are common in low-income populations in developing regions of Africa, Asia, and the Americas. They are caused by a variety of pathogens, such as viruses, bacteria, protozoa, and parasitic worms (helminths). These diseases are contrasted with the "big three" infectious diseases, which generally receive greater treatment and research funding. In sub-Saharan Africa, the effect of neglected tropical diseases as a group is comparable to that of malaria and tuberculosis. NTD co-infection can also make HIV/AIDS and tuberculosis more deadly.
Capnocytophaga canimorsus is a fastidious, slow-growing, Gram-negative rod of the genus Capnocytophaga. It is a commensal bacterium in the normal gingival microbiota of canine and feline species, but can cause illness in humans. Transmission may occur through bites, licks, or even close proximity with animals. C. canimorsus generally has low virulence in healthy individuals, but has been observed to cause severe, even grave, illness in persons with pre-existing conditions. The pathogenesis of C. canimorsus is still largely unknown, but increased clinical diagnoses have fostered an interest in the bacillus. Treatment with antibiotics is effective in most cases, but the most important yet basic diagnostic tool available to clinicians remains the knowledge of recent exposure to canines or felines.
The rabies vaccine is a vaccine used to prevent rabies. There are several rabies vaccines available that are both safe and effective. Vaccinations must be administered prior to rabies virus exposure or within the latent period after exposure to prevent the disease. Transmission of rabies virus to humans typically occurs through a bite or scratch from an infectious animal, but exposure can occur through indirect contact with the saliva from an infectious individual.
Rabies is a viral disease that causes encephalitis in humans and other mammals. It was historically referred to as hydrophobia due to the symptom of panic when presented with liquids to drink. Early symptoms can include fever and abnormal sensations at the site of exposure. These symptoms are followed by one or more of the following symptoms: nausea, vomiting, violent movements, uncontrolled excitement, fear of water, an inability to move parts of the body, confusion, and loss of consciousness. Once symptoms appear, the result is virtually always death. The time period between contracting the disease and the start of symptoms is usually one to three months but can vary from less than one week to more than one year. The time depends on the distance the virus must travel along peripheral nerves to reach the central nervous system.
The prevalence of rabies, a deadly viral disease affecting mammals, varies significantly across regions worldwide, posing a persistent public health problem.
In animals, rabies is a viral zoonotic neuro-invasive disease which causes inflammation in the brain and is usually fatal. Rabies, caused by the rabies virus, primarily infects mammals. In the laboratory it has been found that birds can be infected, as well as cell cultures from birds, reptiles and insects. The brains of animals with rabies deteriorate. As a result, they tend to behave bizarrely and often aggressively, increasing the chances that they will bite another animal or a person and transmit the disease.
A bear attack is an attack by a bear on another animal, although it usually refers to a bear attacking a human or domestic pet. Bear attacks are of particular concern for those who are in bear habitats. They can be fatal and often hikers, campers, fishers, and others in bear country take precautions against bear attacks.
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.
Rabies is a viral disease that exists in Haiti and throughout the world. It often causes fatal inflammation of the brain in humans and other mammals, such as dogs and mongooses in Haiti. The term "rabies" is derived from a Latin word that means "to rage"; rabid animals sometimes appear to be angry. Early symptoms can include fever and tingling at the site of exposure, followed by one or more of the following symptoms: violent movements, uncontrolled excitement, fear of water, an inability to move parts of the body, confusion, and loss of consciousness. Once symptoms appear, death is nearly always the outcome. The time period between contracting the disease and showing symptoms is usually one to three months; however, this time period can vary from less than a week to more than a year. The time between contraction and the onset of symptoms is dependent on the distance the virus must travel to reach the central nervous system.
Cat bites are bites inflicted upon humans, other cats, and other animals by the domestic cat. Data from the United States show that cat bites represent between 5–15% of all animal bites inflicted to humans, but it has been argued that this figure could be the consequence of under-reporting as bites made by cats are considered by some to be unimportant. Though uncommon, cat bites can sometimes cause rabies lead to complications and, very rarely, death.
Rabies takes an economic toll on Tanzania; costs due to rabies include medical expenses, control of infected dogs, and safety inspections in local communities. Rabies medication is also very expensive for the average Tanzanian.
A monkey bite is the bite of a monkey and is the second most common animal bite after dog bites in India. Monkey bites account for 2–21% of animal bite injuries. Monkey bites are an important risk among travelers and after dog bites is the most common animal bite for travelers. Treatment depends upon many factors including the suspicion of rabies. Management involves:
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. 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.
The Sarawak rabies outbreak is an ongoing rabies outbreak in the state of Sarawak in Malaysia. Until 6 December 2022, 49 confirmed rabies cases and 44 deaths have been reported.
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