Line for March 14, 2026

Earliest

1. 1
   Vaccine measles, mumps, rubella, chickenpox

   The combined MMRV vaccine is licensed

   Position 12345
2. 2
   Elimination HIV and syphilis (mother to child)

   Cuba is the first country validated for ending mother-to-child HIV and syphilis

   Position 12345
3. 3
   Vaccine pertussis

   The first whole-cell whooping cough (pertussis) vaccines are licensed in the U.S.

   Position 12345
4. 4
   Discovery measles

   A Scottish physician shows measles is caused by an infectious agent in the blood

   Position 12345
5. 5
   Vaccine pneumococcal disease

   The first pneumococcal vaccine is licensed in the U.S.

   Position 12345

Latest

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