The virus that causes COVID-19, SARS-CoV-2, is a zoonotic virus, which means it can spread between people and animals. As more animals are reported infected with the COVID-19 virus, it becomes increasingly clear that a One Health approach is crucial to address new disease threats that affect both people and animals. 3 нояб. 2021 г.
What does it mean that coronaviruses are zoonotic?
Coronaviruses are zoonotic, meaning they are transmitted between animals and people. Detailed investigations found that SARS-CoV was transmitted from civet cats to humans and MERS-CoV from dromedary camels to humans. Several known coronaviruses are circulating in animals that have not yet infected humans.
Is COVID-19 caused by a virus or a bacteria?
The coronavirus disease (COVID-19) is caused by a virus, NOT by bacteria.
When was COVID-19 first identified?
On 31 December 2019, WHO was informed of cases of pneumonia of unknown cause in Wuhan City, China. A novel coronavirus was identified as the cause by Chinese authorities on 7 January 2020 and was temporarily named “2019-nCoV”.
Where did COVID-19 origin?
The first known infections from SARS‑CoV‑2 were discovered in Wuhan, China.[17] The original source of viral transmission to humans remains unclear, as does whether the virus became pathogenic before or after the spillover event.[19][75][9] Because many of the early infectees were workers at the Huanan Seafood Market,[76][77] it has been suggested that the virus might have originated from the market.[9][78] However, other research indicates that visitors may have introduced the virus to the market, which then facilitated rapid expansion of the infections.
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