My son has a PID and last year children in his class had the live Fluenz vaccine. My son had to be off school for two weeks. Can the live vaccine be passed on and is it still the case he should miss school?

To date no cases of transmission have been reported. Children well enough to attend mainstream school do not need to avoid other children who have received the vaccine, but PID patients should not receive the live virus as a direct inoculation. Children undergoing or recovering from bone marrow transplant or with SCID (untreated) are advised that household contacts should have killed, not live, vaccines.