Line for July 31, 2026

Earliest

1. 1
   Treatment diabetes

   A Nobel Prize for the discovery of insulin

   Position 12345
2. 2
   Eradication rinderpest (a cattle disease)

   The last identified case of rinderpest, the second disease ever eradicated

   Position 12345
3. 3
   Vaccine pneumococcal disease

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

   Position 12345
4. 4
   Vaccine measles

   An improved, weaker measles vaccine goes into use

   Position 12345
5. 5
   Campaign polio

   The World Health Assembly resolves to eradicate polio

   Position 12345

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