Letter to Editor - Archives of General Internal Medicine (2021) Volume 5, Issue 2
COVID-19 variants and its overview.
The virus that causes COVID-19, SARS-CoV-2, has had a significant impact on human health
worldwide; infecting a large number of people; causing severe disease and associated long-term health
sequelae; leading to death and excess mortality, especially among older and vulnerable populations;
disrupting routine health services; disrupting travel, trade, education and many other social functions;
more generally, it has a detrimental effect on the physical and mental health of people Author(s): Sophia Williams
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