According to the American Society of Infectious Diseases, the Delta variant coronavirus has pushed the threshold for achieving herd immunity to more than 80%, and
Read MoreWashington: The “Quad Security Dialogue” (Quad) mechanism composed of the United States, Japan, India, and Australia held its summit for the first time and agreed to pool capital, production, and distribution capabilities to provide 1 billion doses to Asian countries by the end of 2022 Coronavirus vaccine.
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