Mixing Covid vaccines gives good protection, study suggests
Any combination of Pfizer or AstraZeneca for first and second doses works, a study suggests.
from BBC News - World https://ift.tt/3gYmhNt
from BBC News - World https://ift.tt/3gYmhNt
Ex-Zambian minister killed in security raid on opposition
Police confirm Mutotwe Kafwaya's death after growing demands for information about his whereabouts. from BBC News https://ift.tt/o6j35Ve
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