Metropolitan Life Insurance company promoted diphtheria immunization in New York in the 1920s. The children lined to up receive what at that time would have been toxin-antitoxin mixture from school nurses.
Creator:
Metropolitan Life Insurance Co.
Metropolitan Life Insurance company promoted diphtheria immunization in New York in the 1920s. The children lined to up receive what at that time would have been toxin-antitoxin mixture from school nurses.
Creator:
Metropolitan Life Insurance Co.