AstraZeneca and Johnson & Johnson s vaccines can cause "mutant" proteins to escape cells, triggering a response in blood vessels, the scientists say.
Researchers claim mystery of rare blood clots tied to COVID-19 vaccines solved, but experts urge caution cbc.ca - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from cbc.ca Daily Mail and Mail on Sunday newspapers.