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Animal Humans killed per year Animal Humans killed per year Animal Humans killed per year 1 Mosquitoes: 1,000,000 [a] Mosquitoes 750,000 Mosquitoes 725,000 2 Humans 475,000 Humans (homicide) 437,000 Snakes 50,000 3 Snakes: 50,000 Snakes 100,000 Dogs 25,000 4 Dogs: 25,000 [b] Dogs 35,000 Tsetse flies 10,000 5 Tsetse flies: 10,000 [c] Freshwater ...
Biological warfare, also known as germ warfare, is the use of biological toxins or infectious agents such as bacteria, viruses, insects, and fungi with the intent to kill, harm or incapacitate humans, animals or plants as an act of war. [1]
In humans, symptoms include nausea, disorientation, and headache; these may be delayed for several hours. Haemotoxins are used in diagnostic studies of the coagulation system. Lupus anticoagulant is detected by changes in the dilute Russell's viper venom time , which is a laboratory assay based on—as its name indicates—venom of the Russell ...
E. histolytica causes tissue destruction which leads to clinical disease. E. histolytica induces tissue damage by three main events: direct host cell death, inflammation, and parasite invasion. Once the trophozoites are excysted in the terminal ileum region, they colonize the large bowel, remaining on the surface of the mucus layer and feeding ...
About 200 Americans are killed per year by animals, according to one study, and the most common perpetrators may be surprising. A recent Washington Post analysis of government data between 2001 ...
Acetylcholinesterase (AChE) is an enzyme found in animals, from insects to humans. It is essential to nerve cell function through its mechanism of breaking down the neurotransmitter acetylcholine into its constituents, acetate and choline. [115]
The threat of so-called “mad cow disease” has all but faded from the collective memory, after its appearance in U.K. cattle in 1986. Human deaths from the scourge, caused by eating ...
Blooming cyanobacteria can produce cyanotoxins in such concentrations that they can poison and even kill animals and humans. Cyanotoxins can also accumulate in other animals such as fish and shellfish, and cause poisonings such as shellfish poisoning. Some of the most powerful natural poisons known are cyanotoxins.