1976 swine flu campaign faulted yet principals would do it again.
D004196:Disease Outbreaks / Q000517:prevention & control*; D006801:Humans; D007114:Immunization; D007252:Influenza Vaccines; D007251:Influenza, Human / Q000517:prevention & control; D011314:Preventive Health Services
D007252:Influenza Vaccines