Quoted from PinMonk:As I have read it, though, the timeframe for the second shot is very tight - like a 36 hour window or something crazy. Miss that 2nd shot window and you have to start over. Seems prone to user error/compliance problems.
Yep agree 36 hour window sounds tight/prescriptive. If you wait too long after the first shot, the body will treat the new vaccination not as a continuation (ie you won't get the long term protection) and the down side of doing it too early is that you may need a 3rd vaccination to get the body to believe it is under a continual attack and maintain the antibodies. Given the quantities of vaccine needed, they don't want to have to do 3 vaccinations per person and so are pushing the window for the 2nd vaccination out to it's limit to reach the required period of the time the body is continually producing antibodies to create the long term protection - the downside of this is that the window to receive the 2nd treatment is much narrower.