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28-07-2021, 08:18 AM
cdc did the right thing.
vaccine improves the body immunity to response to virus infection.
wear mask is still necessary as it reduce chance of virus getting in. more important
it reduces a covid-19 infected person span of effect to be reduce from 10m to within 1-2 m.
together with social distancing, covid-19 will soon be put to bed
vaccine improves the body immunity to response to virus infection.
wear mask is still necessary as it reduce chance of virus getting in. more important
it reduces a covid-19 infected person span of effect to be reduce from 10m to within 1-2 m.
together with social distancing, covid-19 will soon be put to bed
