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Parts of this article (those related to All) need to be updated.The reason given is: charts out of date, numbers only go to January 2022, irrelevant info in lead.
The official count of COVID-19 deaths as of December 2021 is slightly more than 5.4 million, according to World Health Organization's report in May 2022. WHO also said that the real numbers are far higher than the official tally because of unregistered deaths in countries without adequate reporting. [11]
Within three months, the virus had spread throughout the continent, as Lesotho, the last African sovereign state to have remained free of the virus, reported a case on 13 May 2020. [37] [38] By 26 May, it appeared that most African countries were experiencing community transmission, although testing capacity was limited. [39]
In fact, there are so many viruses that if you combined all of Earth’s viruses, they would cover an area spanning 100 million light-years, according to a study in Nature Reviews Microbiology.
Many latent and asymptomatic viruses are present in the human body all the time. Viruses infect all life forms; therefore the bacterial, plant, and animal cells and material in the gut also carry viruses. [6] When viruses cause harm by infecting the cells in the body, a symptomatic disease may develop.
Influenza viruses: You’re likely familiar with the seasonal flu, but in the last century there have also been four influenza pandemics: the infamous Spanish Flu pandemic in 1918, the H2N2 flu ...
In early and mid-January, the virus spread to other Chinese provinces, helped by the Chinese New Year migration. Wuhan was a transport hub and major rail interchange. [205] On 10 January, the virus' genome was shared publicly. [206] A retrospective study published in March found that 6,174 people had reported symptoms by 20 January. [207]
It is estimated that viruses kill approximately 20% of this biomass each day and that there are 10 to 15 times as many viruses in the oceans as there are bacteria and archaea. [205]