A zoonosis is any disease or infection that is naturally transmissible from vertebrate animals to humans. Zoonoses may be bacterial, viral, or parasitic, or may involve unconventional agents. Animals can sometimes appear healthy even when they are carrying germs that can make people sick, depending on the disease.
An outbreak of one such zoonotic disease took place near the Kyasanur Forest in Karnataka in 1957. The Kyasanur Forest Disease (KFD), also known as monkey fever, is a highly dangerous haemorrhagic fever. It is a viral disease transmitted to humans through a tick species usually found on monkeys. Those who live in in disease-prone areas in forests and those who visit forests frequently for their livelihood, such as forest guards and health workers are at risk.
COVID-19 pandemic
Another example of a zoonotic disease is COVID-19, which broke out in China's Wuhan district in December 2019. It was declared a pandemic by WHO in March 2020. COVID-19 is caused by the virus SARS-COV2 which is believed to have started in Huanan Seafood Wholesale Market in Wuhan. Other types of zoonotic viruses include SARS-CoV, which was transmitted from civet cats to humans and MERS-CoV which was transmitted from dromedary camels to humans. Several known coronaviruses are circulating in animals. These have not yet infected humans.
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