The COVID-19 'war has changed' due to delta variant, CDC says

Nurse prepares Pfizer-BioNTech COVID-19 dose

The war against COVID-19 has changed because of the highly contagious delta variant, the U.S. Centers for Disease Control said, proposing a clearer message, mandatory vaccines for health workers and a return to universal masking.



from CBC | Health News https://ift.tt/3zWwuAq

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