Corona Virus
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- Coronavirus disease 2019 (COVID-19) is an infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).
- It was first identified in December 2019 in Wuhan, China, and has resulted in an ongoing pandemic.
History
- The virus is thought to be natural and has an animal origin,through spillover infection.
- The actual origin is unknown.
- The first known cases of infection happened in China. By December 2019, the spread of infection was almost entirely driven by human-to-human transmission.
- A study of the first 41 cases of confirmed COVID‑19, published in January 2020 in The Lancet, revealed the earliest date of onset of symptoms as 1 December 2019.
- publications from the WHO reported the earliest onset of symptoms as 8 December 2019.
- Human-to-human transmission was confirmed by the WHO and Chinese authorities by 20 January 2020.
Symptoms
- Common symptoms include fever, cough, fatigue, shortness of breath, and loss of smell and taste.
- The onset of symptoms can range from 2 to 14 days.
- The virus is primarily spread between people during close contact.
Research
- No medication or vaccine is approved to treat the disease.
- International research on vaccines and medicines in COVID‑19 is underway by government organisations, academic groups, and industry researchers.
- In March, the World Health Organisation initiated the "Solidarity Trial" to assess the treatment effects of four existing antiviral compounds with the most promise of efficacy.
- France, Italy and Belgium also banned the use of hydroxychloroquine as a COVID-19 treatment.
- The World Health Organization suspended hydroxychloroquine from its global drug trials for COVID-19 treatments on 26 May 2020 due to safety concerns. It had previously enrolled 3,500 patients from 17 countries in the Solidarity Trial.
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