Natural immunity vs. Pfizer BNT162b2 vs. Coronavac

The study, Comparison of the immunogenicity of BNT162b2 and CoronaVac COVID-19 vaccines in Hong Kong, was published in the peer-reviewed journal Respirology. The two injections are different. The Pfizer BNT162b2  uses the modified RNA technology enclosed in a lipid nanoparticle. In contrast, the Coronavac uses an old vaccine technology using inactivated viruses that cannot replicate…

COVID-19 during pregnancy follows a routine clinical course for the mother and her baby

The clinical impact of maternal COVID-19 on mothers, their infants, and placentas with an analysis of vertical transfer of maternal SARS-CoV-2-specific IgG antibodies is a study from the University of North Carolina at Chapel Hill. It is a preprint at medRxiv that came out yesterday. The research included 115 pregnant mothers with COVID-19 from December…

Antibodies to COVID-19 can Exist in the Uninfected

Is there a natural way to be immunized against COVID-19? Read on to know the answer. Four human coronaviruses (HCoV) are responsible for 30% of the seasonal colds. They are  HCoV-OC43, HCoV-HKU1, HCoV-NL63, and HCoV-229E.  The death rate associated with these seasonal colds is minimal compared to COVID-19. COVID-19 is different. It has a higher…