COVID vaccines saved millions of lives, but months into the rollout, a small number of people began developing dangerous blood clots in unusual parts of the body. These only happened after vaccines that used a modified adenovirus to deliver their payload, such as the AstraZeneca vaccine. Why these blood clots formed was a mystery – until now. The condition was named vaccine-induced immune thrombocytopenia and thrombosis, or VITT . It happens when the immune system mistakenly attacks one of the

Tag-uri: Coronavirus