World Smallpox Eradication Day

Occurrence:
2X
Hashtags:
References:
who.int/…/commemorating-the-40th-anniversary-of-smallpox-eradica…
twitter.com/StoryWonker/status/1336763552418422785
twitter.com/windbarb/status/994024466068983808

World Smallpox Eradication Day takes place twice annually, on the 8th of May and on the 9th of December.