Science History Mysteries; HeLa, Milkmaids and moudly oranges

Science history mysteries!

Fuzzy little helpers – How penicillin came into being.
A cheer for the milkmaid – how the beauty of milkmaids helped to develop the very first vaccination in human history: the smallpox vaccine
HeLa, the immortal cells from cervical cancer victim, Henrietta Slack- a cell line that just doesn’t want to die, now used in thousands of lab experiments all over the world

Henrietta Lacks, unaware donor of HeLa cell lineage Credit: Wikipedia