4 definitions of HPR. Definition of HPR in Business & Finance. What does HPR stand for?
According to the Centers for Disease Control (CDC), you should allow two weeks after getting a flu shot to develop protection against the flu. That's because after vaccination, the body has to work for a while to create the protective antibodies to the flu virus. Bear in mind, though, that there's a lot of variation in how fast different people's immune systems work.
According to the Centers for Disease Control and Prevention, whether you take Tamiflu or not, you should wait at least 24 hours after your fever has disappeared before returning to school or work to help prevent spread of the flu.