Faced with Omicron and new variants, what new challenges for vaccination? - OI Canadian

At least fifteen million dead. A week before the meeting of the second International Summit on the SARS-CoV-2 pandemic, the WHO publishes a heavier toll than the previous ones. The 6 million deaths me

At least fifteen million dead. A week before the meeting of the second International Summit onthe SARS-CoV-2 pandemic, the WHO publishes a heavier toll than the previous ones. The 6 million deaths me… [+7535 chars]

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