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Articles on Blood clots

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The AstraZeneca vaccine was 70 per cent effective against symptomatic COVID-19 infection in a large multinational study, and recently reported 76 per cent overall efficacy against symptomatic COVID-19 in another large study done primarily in the United States. THE CANADIAN PRESS/John Woods

AstraZeneca COVID-19 vaccine FAQ: Why do the age recommendations keep changing? Does it cause VIPIT blood clots? Is it effective against variants?

With changing recommendations about AstraZeneca's COVID-19 vaccine making headlines, many people have questions about its use.
Blood clots can form in the lungs, brain, heart, or veins. SciePro/Shutterstock

Blood clots: five reasons they may happen

Blood clots form to prevent blood loss both inside and outside the body. But they can become dangerous if they get dislodged from where they form.
The risk of a woman dying from a road accident is approximately 25 times that of death from a pill-related clot. epSos .de/Flickr

Don’t panic about the pill – it’s safer than driving to work

Newer contraceptive pills pose a higher risk of serious blood clots, says a study published in the BMJ today. The finding isn't new, but it may be cause for a different kind of concern.

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