>I thought any human trial needs at least a full one-year follow-up to make sure ... Depends what you mean by "need". If you're talking about a risk/benefit c

>I thought any human trial needs at least a full one-year follow-up to make sure ... Depends what you mean by "need". If you're talking about a risk/benefit calculation for getting a vaccination, I expect it will play out very differently for high-risk elderly folks vs low-risk young adults.