booster vaccines

Natural selection for adaptation (7)

Microbial signatures in the lower airways of mechanically ventilated COVID-19 patients associated with poor clinical outcome 8/31/21 was reported as: High virus count in the lungs drives COVID-19 deaths 8/31/21 …the study revealed that those who died had on average 50 percent lower production of a type of immune chemical that targets the coronavirus compared Natural selection for adaptation (7)