Prognosis
Blood Clot Risk Much Higher From Covid-19 Than With Vaccines
- U.K. study finds Covid causes thousands more blood clots
- Findings bolster decision for continued use of AstraZeneca
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Covid-19 patients face a much higher risk of developing blood clots than those vaccinated with AstraZeneca Plc or Pfizer Inc.’s shots, according to a large U.K. study.
For every 10 million people who receive the first dose of AstraZeneca, about 66 more will suffer from a blood-clotting syndrome than during normal circumstances, according to the study published in the British Medical Journal. This figure compares with 12,614 more incidences recorded in 10 million people who have tested positive for Covid-19.