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A term for COVID-19 used by former United States president Donald Trump to emphasize that the pandemic started in China. Comirnaty. Main article: Comirnaty. The commercial name for the FDA approved COVID-19 vaccine from Pfizer, released August 21, 2021. It also has several other names or designators used on the actual vials. Community transmission
The earliest reports of a coronavirus infection in animals occurred in the late 1920s, when an acute respiratory infection of domesticated chickens emerged in North America. [15] Arthur Schalk and M.C. Hawn in 1931 made the first detailed report which described a new respiratory infection of chickens in North Dakota.
SARS-CoV-2 is the seventh known coronavirus to infect people, after 229E, NL63, OC43, HKU1, MERS-CoV, and the original SARS-CoV. [105] Like the SARS-related coronavirus implicated in the 2003 SARS outbreak, SARS‑CoV‑2 is a member of the subgenus Sarbecovirus (beta-CoV lineage B). [106] [107] Coronaviruses undergo frequent recombination. [108]
On 24 January, the Institute for Health Metrics and Evaluation estimated that about 57% of the world's population had been infected by COVID-19. [62] [63] By 6 March, it was reported that the total worldwide death count had surpassed 6 million people. [241] By 6 July, Omicron subvariants BA.4 and BA.5 had spread worldwide. [242]
Coronavirus diseases are caused by viruses in the coronavirus subfamily, a group of related RNA viruses that cause diseases in mammals and birds. In humans and birds, the group of viruses cause respiratory tract infections that can range from mild to lethal.
Coronavirus may also refer to: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a strain that emerged in 2019 Coronavirus disease 2019 (COVID-19), the disease it causes; COVID-19 pandemic, the global spread of that disease; Coronavirus, a 2020 Indian drama film by Agasthya Manju
COVID-19 pandemic: 2019 [b] –present Worldwide COVID-19: 7.1–36.5 million [306] 2020 Democratic Republic of the Congo Ebola outbreak: 2020 Democratic Republic of the Congo: Ebola: 55 [307] 2020 dengue outbreak in Singapore: 2020 Singapore: Dengue fever: 32 [308] 2020 Nigeria yellow fever epidemic 2020 Nigeria: Yellow fever: 296 (as of 31 ...
An infection is the invasion of tissues by pathogens, their multiplication, and the reaction of host tissues to the infectious agent and the toxins they produce. [1] An infectious disease, also known as a transmissible disease or communicable disease, is an illness resulting from an infection.