“Honey, have you seen the smallpox virus vial? It was right here on the counter when I was making the kid’s lunch for school. Now, where could it be?”
From Wiki:
“In March 2004, smallpox scabs were found inside an envelope in a book on Civil War medicine in Santa Fe, New Mexico.[104] The envelope was labeled as containing scabs from a vaccination and gave scientists at the CDC an opportunity to study the history of smallpox vaccination in the United States.”