It will certainly be interesting to follow the studies that will come out on this over the coming years. There are numerous different approaches being taken to

It will certainly be interesting to follow the studies that will come out on this over the coming years. There are numerous different approaches being taken to vaccination that can be compared. Most of Canada is giving first doses to essentially the entire adult population (which is expected to take a few months) before beginning second doses. Indonesia is focusing on vaccinating young and active people - those most likely to spread the virus - before those most likely to die from it. It will be interesting to see how results compare. By the way, I've seen that the mRNA vaccines are even more effective than that after the first dose, if you just consider the period from about 10 days onward, ie after it has had a chance to kick in. Here in BC they're quoting a demonstrated efficacy of "up to 90%" from 10 days through to at least 3 months.