Pertussis cases in Pennsylvania on increase

Pa Med. 1983 Mar;86(3):16.
No abstract available

MeSH terms

  • Child
  • Child, Preschool
  • Humans
  • Infant
  • Pennsylvania
  • Pertussis Vaccine
  • Whooping Cough / epidemiology*
  • Whooping Cough / prevention & control

Substances

  • Pertussis Vaccine