T-cell response 'lasts six months after Covid infection' - BBC News
T-cell response 'lasts six months after Covid infection' - BBC News But it is still not clear how much this protects people against being re-infected, experts say.LINK
T-cell response 'lasts six months after Covid infection' - BBC News But it is still not clear how much this protects people against being re-infected, experts say.LINK