A Situation Update On Covid-19 Variants And Vaccines

The article that follows is complex, so I will first and foremost summarize its major points. The fundamental advice I must begin with is that if you’re not vaccinated, get vaccinated, because it will likely prevent your hospitalization or death.

Second, that being said, some vaccines are much better than others. The mRNA vaccines have proved to be much better than the rest, including the adenovirus and inactivated whole virus vaccines.

Third, all currently approved vaccines wane in efficacy over time, for some populations more than others. Those who are 65 and older, along with others high-risk groups, can anticipate having a level of immune protection that is less robust and sooner to fade. Boosters will very likely be required, first for older adults, then the general population, within six months of their last shot.

Lastly, it is very likely that new and even more dangerous viruses than the Delta will emerge, and it’s unclear how well existing vaccines will protect from hospitalization and death from such new variants. All these considerations and more I will elaborate on in the succeeding paragraphs.

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Originally published on Forbes (July 28, 2021)

© William A. Haseltine, PhD. All Rights Reserved.