CoronaVirus: Covid-19
The most common symptoms of COVID-19 are fever, tiredness, and dry cough. Some patients may have aches and pains, nasal congestion, runny nose, sore throat or diarrhea. These symptoms are usually mild and begin gradually.
The most common symptoms of COVID-19 are fever, tiredness, and dry cough. Some patients may have aches and pains, nasal congestion, runny nose, sore throat or diarrhea. These symptoms are usually mild and begin gradually.
The virus is thought to be natural and has an animal origin,through spillover infection.The actual origin is unknown,but 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.Official 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.
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Hotter, humid weather may not halt spread of Covid-19: Study
Temperature and latitude are not associated with the spread of COVID-19 disease, according to a global study that found school closures and other public health measures are having a positive effect on containing the novel coronavirus.
The study, published in the Canadian Medical Association Journal, looked at 144 geopolitical areas -- states and provinces in Australia, the US, and Canada as well as various countries around the world -- and a total of over 3,75,600 confirmed COVID-19 cases.
The researchers said China, Italy, Iran and South Korea were excluded because the virus was either waning in the case of China or in full disease outbreak at the time of the analysis in others. Read more...