Official CDC Health Update: 2019 New Coronavirus

THIS IS HOW VACCINES IN THE RACE AGAINST CORONAVIRUS WORK
How they act within the body to prevent the infection from progressing....
Of the 166 vaccines under investigation against Covid-19 that have been registered by the World Health Organization, 25 are already in the clinical phase of studies with humans. In turn, within this group, different technologies are evaluated, some already used and others that are completely innovative in the face of an unprecedented challenge for world science....

Coronavirus. What are T cells and how do they provide hidden immunity?
 
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