clot

His father Gary was born with haemophilia, a genetic condition that damages the blood's ability to clot.

In 2015, he went into a diabetic coma for four days, and the following year went to hospital with a blood clot.

The side effect is a type of blood clot, often in the brain, combined with low platelet levels, almost always within a few weeks after receiving the first dose.

Platelets are cells that help your blood clot, and it was so unusual to see blood clots combined with low platelet levels, that experts coined a new medical term: vaccine-induced thrombosis with thrombocytopenia, or VITT.

Mary Klein, 55, who suffered a savage beating that left her with missing teeth and a blood clot in her brain, was attacked around 10:30 p.m.