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The timeline of the COVID-19 pandemic lists the articles containing the chronology and epidemiology of SARS-CoV-2, [1] the virus that causes the coronavirus disease 2019 and is responsible for the COVID-19 pandemic. The first human cases of COVID-19 occurred in Wuhan, People's Republic of China, on or about 17 November 2019. [2]
A COVID-19 vaccine is intended to provide acquired immunity against severe acute respiratory syndrome coronavirus 2 (SARS‑CoV‑2), the virus that causes coronavirus disease 2019 . Prior to the COVID-19 pandemic, an established body of knowledge existed about the structure and function of coronaviruses causing diseases like severe acute ...
Coronaviruses also affect other branches of animal husbandry such as pig farming and cattle raising. [127] Swine acute diarrhea syndrome coronavirus (SADS-CoV), which is related to bat coronavirus HKU2, causes diarrhea in pigs. [134] Porcine epidemic diarrhea virus (PEDV) is a coronavirus that has recently emerged and similarly causes diarrhea ...
Cas9 (or "CRISPR-associated protein 9") is an enzyme that uses CRISPR sequences as a guide to recognize and open up specific strands of DNA that are complementary to the CRISPR sequence. Cas9 enzymes together with CRISPR sequences form the basis of a technology known as CRISPR-Cas9 that can be used to edit genes within living organisms.
Chalk COVID-19 and VE day themed mural in May 2020. COVID-19 pandemic in popular culture; Impact of the COVID-19 pandemic on the arts and cultural heritage; Impact of the COVID-19 pandemic on cinema; Impact of the COVID-19 pandemic on the performing arts; Impact of the COVID-19 pandemic on social media; Impact of the COVID-19 pandemic on sports
The history of coronaviruses is an account of the discovery of the diseases caused by coronaviruses and the diseases they cause. It starts with the first report of a new type of upper-respiratory tract disease among chickens in North Dakota, U.S., in 1931. The causative agent was identified as a virus in 1933.
[27] [28] In January 2020, the World Health Organization (WHO) recommended "2019 novel coronavirus" (2019-nCoV) [5] [29] as the provisional name for the virus. This was in accordance with WHO's 2015 guidance [ 30 ] against using geographical locations, animal species, or groups of people in disease and virus names.
On 10 June, the WHO reported that research was continuing to determine how the COVID-19 virus can be transmitted by people who show no symptoms of the disease (asymptomatic transmission). [101] On 11 June, the WHO Africa regional office warned that COVID-19 was accelerating in Africa, with more than 200,000 cases and more than 5,600 deaths. [102]