Scientists say new vaccines needed within a year

face mask, young woman
She’s at little risk of serious illness if she’s generally healthy

The problem is that the virus mutates over time, perhaps to the point that the vaccinated immune system doesn’t recognize the new mutant. Learn the word endemic; you’ll be hearing it more often.

From The Guardian in March, 2021:

The planet could have a year or less before first-generation Covid-19 vaccines are ineffective and modified formulations are needed, according to a survey of epidemiologists, virologists and infectious disease specialists.

* * *

The grim forecast of a year or less comes from two-thirds of respondents, according to the People’s Vaccine Alliance, a coalition of organisations including Amnesty International, Oxfam, and UNAIDS, who carried out the survey of 77 scientists from 28 countries. Nearly one-third of the respondents indicated that the time-frame was likely nine months or less.

Source: Covid: new vaccines needed globally within a year, say scientists | Coronavirus | The Guardian

Another issue is that we don’t know how long the vaccine’s effectiveness lasts. Pfizer’s CEO recently suggested a booster by be needed as soon as six months after the last shot.

Steve Parker, M.D.

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