by on August 19, 2022
With the delta and omicron varieties of COVID-19, the number of cases has risen to over 270 million, and the mortality toll has increased to over 5 million. From Asia to Europe, from the United States to Brazil, fresh waves of coronavirus infections have exacerbated the situation since the epidemic first began. While COVID instances increased worldwide, it is unexpected that some nations have been able to contain the virus since it first appeared in early 2020. The World Health Organization (...
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