Animal bitesDOGS With more than 60 million pet dogs in the United States, plus thousands of strays, it is not surprising that an estimated 4.7 million Americans a year are bitten by a dog. Although most dog-bite injuries are minor, about 400,000 children seek medical attention for a dog bite every year, according to the Centers for Disease Control and Prevention. Of those injured, about 386,000 require emergency treatment and about a dozen die from their injuries. However, most of the injuries suffered by children seeking treatment in emergency rooms are of low severity and result in treatment and quick release from the hospital.
Studies also show that most dog bites are from pets or other dogs known to the child who is bitten. In fact, more than half of the bites seen by emergency departments occur at home. Many of the bites result from attempting to break up fights between animals.
CATS Although cats are found in nearly one third of U.S. households, cat bites are far less common than dog bites. According to one study, cats inflict perhaps 400,000 harmful bites in the United States each year. The tissue damage caused by cat bites is usually limited but carries a high risk of infection. Whereas the infection rate for dog bite injuries is 15 to 20 percent, the infection rate for cat bites is 30 to 40 percent. Cat bites are also more likely to be provoked. A typical person who has been bitten is a young girl playing with a pet.
HUMANS Bites from mammals other than dogs and cats are uncommon, with one exception—human bites. There are approximately 70,000 human bites each year in the United States. Because the human mouth contains a multitude of potentially harmful microorganisms, human bites are more infectious than those of most other mammals.
SnakesThere are 20 species of venomous snakes in the United States. These snakes are found in every state except Maine, Alaska, and Hawaii. Each year about 8,000 Americans receive a venomous snakebite, but no more than about 15 die, mostly from rattlesnake bites.
The venomous snakes of the United States are divided into two families: the Crotalidae (pit vipers) and the Elapidae. Pit vipers are responsible for about 99 percent of the venomous snakebites suffered by Americans. Because coral snakes are creatures that come out only at night, they almost never bite humans; they are held responsible for approximately 25 bites a year in the United States.
http://www.healthline.com/galecontent/bites-and-stings-2
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