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  1. ... would report that a COVID -19 vaccine would not last long...will produce a humeral immune response by increasing the... cellular immunity with more memory T... and ready to fight the infection in the future.. and these...

    2 Answers · Health · 28/10/2020

  2. ... of virus spread, effectiveness of infection control practices, weather and human immunity will likely all play a role in .... Additionally, because COVID -19 is so new, “there is...

    12 Answers · Health · 06/03/2020

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