Line for May 18, 2026

Earliest

1. 1
   Treatment bacterial infections

   A Nobel Prize for penicillin "and its curative effect"

   Position 12345
2. 2
   Vaccine measles, mumps, rubella, chickenpox

   The combined MMRV vaccine is licensed

   Position 12345
3. 3
   Vaccine hepatitis B

   The first hepatitis B vaccine is licensed in the U.S.

   Position 12345
4. 4
   Treatment diabetes

   A Nobel Prize for the discovery of insulin

   Position 12345
5. 5
   Discovery hepatitis B

   The hepatitis B surface antigen is first described

   Position 12345

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