Does LAIV impact a PPD the way MMR does?
The effect of LAIV on a PPD is unknown. However, it is prudent to follow the same guidelines for LAIV as for MMR regarding PPD. If LAIV and PPD cannot be administered on the same day, administer the PPD and defer the dose of LAIV until after the PPD is read. If LAIV is administered first, wait 4 weeks before administering PPD to avoid the risk of a false negative response to the PPD.