Scientists find clues on why COVID vaccine causes chronic health problems in some

For a majority of people, the COVID vaccine doesn’t cause adverse health effects — but a small percentage experience chronic symptoms that can last for months or even years.

Yale researchers recently made some discoveries about why certain people experience this condition, which they have dubbed “post-vaccination syndrome” (PVS).

In early findings, the team recognized “potential immunological patterns” that are unique to people with PVS. The hope is that this discovery will help to enable future treatments and therapies for those who are affected.

“This work is still in its early stages, and we need to validate these findings,” said co-senior study author Akiko Iwasaki, Sterling Professor of Immunobiology at Yale School of Medicine, in a press release.

“But this is giving us some hope that there may be something that we can use for diagnosis and treatment of PVS down the road.”