Line for February 3, 2026

Earliest

1. 1
   Campaign smallpox

   WHO launches an intensified plan to eradicate smallpox

   Position 12345
2. 2
   Discovery diphtheria

   The diphtheria bacterium is first seen under the microscope

   Position 12345
3. 3
   Discovery rubella

   The rubella virus is isolated

   Position 12345
4. 4
   Campaign Guinea worm

   Guinea worm: about 3.5 million cases a year, the starting line for eradication

   Position 12345
5. 5
   Vaccine shingles

   The first shingles (zoster) vaccine is licensed in the U.S.

   Position 12345

Latest

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