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The main virus involved in the global outbreak is classified as H5N1 clade 2.3.4.4b, however genetic diversification with other clades such as 2.3.2.1c has seen the virus evolve in ability to cause significant outbreaks in a broader range of species including mammals.
1957–1958 influenza pandemic ('Asian flu') 1957–1958 Worldwide Influenza A virus subtype H2N2: 1–4 million [187] [203] [204] 1960–1962 Ethiopia yellow fever epidemic 1960–1962 Ethiopia: Yellow fever: 30,000 [205] Seventh cholera pandemic: 1961–present Worldwide Cholera (El Tor strain) 36,000 [citation needed] [206] Hong Kong 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]
As the weather warms, it can bring along a wave of illnesses. Here are some summer bugs to watch for in 2023, including HMPV, Covid, enteroviruses, Lyme Disease and more.
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The world’s first confirmed coronavirus pandemic occurred in 2002, when SARS-CoV-1 was reported in China. It spread to more than two dozen countries in North and South America and Europe before ...
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]
The summer surge of the coronavirus subvariants nicknamed FLiRT has given way to ever more contagious strains, a key reason behind the current high levels of COVID in California and nationwide ...