Covid linked to 33-fold increase in risk of potentially fatal blood clot

Infection with virus also associated with fivefold increase in risk of deep vein thrombosis, data suggests

Catching Covid is associated with a fivefold increase in the risk of deep vein thrombosis (DVT) and a 33-fold increase in risk of a potentially fatal blood clot on the lung in the 30 days after becoming infected, data suggests.

The findings, published in the British Medical Journal on Thursday, could help explain a doubling in the incidence of, and deaths from, blood clots in England since the start of the pandemic compared with the same periods in 2018 and 2019.