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 CDC, if at least two residents get the flu within three days of each other, everyone should get a drug like Tamiflu for at least two weeks, and continue for at least a week after the last case has been identified.