Yes that's true but it doesn't mean you are immune to covid.
Precautions ( double masking- surgical mask with double knotting and above it KN95 mask plus timely use of hand sanitizer is must)and vaccine can help you.
Some studies done in this field in US and UK and also by our ICMR but all have such low sample size that it cannot b generalised for whole population so alaways follow covid atticates and protocols.
Hi, my father blood group has changed from B positive to B negative. What might be the reason for this ch
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