Estimates vary from 1.2 to 5.5 million<unk> s, 421,000 to 2.5 million envenomings, and 20,000 to 125,000 deaths. Since reporting is not mandatory in much of the world, the data on the frequency of<unk> s is not precise. Many people who survive bites have permanent tissue damage caused by venom, leading to disability. Most snake envenomings and fatalities occur in South Asia, Southeast Asia, and sub-Saharan Africa, with India reporting the most<unk>  deaths of any country. Most<unk> s are caused by non-venomous snakes. Of the roughly 3,000 known species of snake found worldwide, only 15% are considered dangerous to humans. Snakes are found on every continent except Antarctica. The most diverse and widely distributed snake family, the colubrids, has approximately 700 venomous species, but only five genera—boomslangs, twig snakes, keelback snakes, green snakes, and slender snakes—have caused human fatalities. Worldwide,<unk> s occur most frequently in the summer season when snakes are active and humans are outdoors. Agricultural and tropical regions report more<unk> s than anywhere else. In the United States, those bitten are typically male and between 17 and 27 years of age. Children and the elderly are the most likely to die.
Snakebite
Frostbite
Overbite
Cat bite
Crossbite
Centipede bite
Dog bite
Spider bite