Study bolsters case that vaccines protect against long-COVID

A scanning electron microscope image shows SARS-CoV-2 (yellow). Credit: NIAID-RML

It may be too soon to know how often the omicron variant is associated with so-called long-COVID, but research from the Leavitt Partners’ COVID-19 Patient Recovery Alliance confirms that vaccination protects against the condition. 

Those who received at least one authorized COVID-19 vaccine dose before diagnosis were between seven and 10 times less likely to report two or more long-COVID-19 symptoms, according to the preprint study conducted before the surge of the delta variant. 

Those who received a vaccine four weeks after diagnosis were four to six times less likely to develop the condition.

There are limits to how well researchers understand the condition given the fuzziness of the definition of long-COVID and the continual emergence of SARS-CoV-2 variants, said Michael A. Simon, principal data scientis…

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