Jun 7, 2023 · When health emergencies arise, scientists seek to discover the cause — such as how a pathogen emerged and spread — because this knowledge can enhance our …

In February 2021, after conducting part of their study, the WHO stated that the likely origin of COVID-19 was a zoonotic event from a virus circulating in bats, likely through another animal …

Jan 25, 2025 · “CIA assesses with low confidence that a research-related origin of the COVID-19 pandemic is more likely than a natural origin based on the available body of reporting,” a CIA …

Nov 21, 2023 · There are two hypotheses as to COVID-19's origins: exposure to an infected animal or a laboratory leak. There is not enough evidence to support either argument. The …

The first human cases of COVID-19 occurred in Wuhan, People's Republic of China, on or about 17 November 2019. [2] The first confirmed human case in the United States was on 19 …

Nevertheless, a large body of virologic, epidemiologic, veterinary, and ecologic data establishes that the new virus, SARS-CoV-2, evolved directly or indirectly from a β-coronavirus in the …

Here, we reviewed the transmission, pathogenesis, possible hosts, as well as the genome and protein structure of SARS‐CoV‐2, which play key roles in the COVID‐19 pandemic. We believe …

Mar 30, 2021 · WHO calls for further studies, data on origin of SARS-CoV-2 virus, reiterates that all hyp...

Aug 15, 2022 · Until recently, there were multiple theories about the origins of SARS-CoV-2. Finger-pointing, politics, and mis- and disinformation soured the discussion, but researchers …

Jan 25, 2025 · The CIA now believes the virus responsible for the COVID-19 pandemic most likely originated from a laboratory.