Waning or No Immunity? A new paradigm for SARS-CoV-2 testing in a pre- and post- vaccination era.

SARS-CoV-2 testing is now facing increasing challenges in the face of an ongoing pandemic with the emergence of new variants and waning vaccine immunity. Increasing evidence supports the correlation between neutralizing antibody titers and protection from this dangerous virus. Recent studies show that less than 40% of immunocompromised and less than 70% of elderly (over 80 years of age) people who are fully vaccinated elicit these protective antibodies. Furthermore, Israel’s early vaccination program exclusively using the Pfizer vaccine has shown waning population immunity after about six months post-vaccination leading to a dramatic uptick in infections particularly from the Delta variant. Thus, triggering a third booster shot for people over the age of 50 in that country. This talk explores the key questions associated with the healthcare implications of SARS-CoV-2 and how an innovative approach to testing may help in determining individual, neutralizing antibody response to vaccination.

 

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