New research Omicron 4th dose vaccine protection
New research Omicron 4th dose vaccine protection. Covid vaccine, Omicron vaccine, vaccine News, vaccine update, Omicron 4th dose vaccine. Israel has begun administering a fourth dose of the BNT162b2 vaccine (Pfizer-BioNTech) to people over the age of 60 and at risk.Who received the third dose of the vaccine at least 4 months ago. To learn …