Результаты (
английский) 3:
[копия]Скопировано!
there are many diseases that are at risk of all humanity. for example, rift valley fever, which infects cattle and people. most often it is found in africa and madagascar. mosquitoes infect animals, but the animals infect people.many people know about such as the ebola virus, which killed many people in africa. the disease is transmitted from animals to man, and most people заболев эболой - dies.if a man wants to live in his own world, is necessary to prevent the development of diseases, especially hazardous.
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