Johnson & Johnson‘s COVID-19 vaccine increases a person’s risk of developing rare blood clots, a new study suggests.
Americans who received the one-dose Johnson & Johnson COVID-19 vaccine were 3.5 times as likely to develop rare blood clots compared to the general population, and women between ages 30 and 64 were most at risk of developing the clots https://t.co/ChPpq9KhXN
— Marina Medvin 🇺🇸 (@MarinaMedvin) November 1, 2021
Researchers from the Mayo Clinic in Rochester, Minnesota, compared data from the general population before the pandemic to data gathered from reported vaccine side-effects suffered by Americans.
They found that a person who received the vaccine was 3.5 times as likely to develop brain blood clots as an average person before the pandemic.
Blood clotting, and specifically cerebral venous sinus thrombosis (CVST) is a well-known side-effect of the J&J vaccine, and the discovery of this risk was the reason usage of the vaccine was paused in April.

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