Not to be inj IV. Not as substitute for routine tetanus vaccination. Not for protection against disease due to other types of H influenzae
nor against meningitis caused by other organisms. Postpone vaccination in subjects w/ acute severe febrile illness. Syncope. Administer SC in patients w/ thrombocytopenia or bleeding disorders. Resp monitoring for 48-72 hr in very premature infants (≤28 wk of gestation) & w/ previous history of resp immaturity.