Do not administer IV. Postpone vaccination in subjects suffering from acute severe febrile illness. Anaphylactic event following administration. Not a substitute for routine tetanus vaccination. Administer SC to subjects w/ thrombocytopenia or a bleeding disorder. Potential risk of apnoea & the need for resp monitoring for 48-72 hr should be considered in very premature infants (≤28 wk of gestation) & those w/ history of resp immaturity. Patients w/ immunodeficiency. Antigen detection may not have a diagnostic value in suspected Hib disease w/in 1-2 wk of vaccination. Not intended for use in adults.