I thought of this story when I read about the Samoan measles epidemic, which has killed 53 people, most of them small children. Apparently, MMR was never mandatory there for school attendance, and it has a bad rap since two babies died last year after getting MMR. However, it wasn't MMR that killed those babies; it was the expired anesthetic agent (not named in this link) that the nurses, who are now in prison, used to reconstitute it!
The deaths of two infants on 6 July 2018 in Samoa shortly after receiving their MMR immunisations were under investigation by the Samoan Ministry of Health and Samoan Police. However, the inquest was put on hold until the trial of the two nurses who administered the MMR vaccines had been...
www.immune.org.nz
And here's a story about the Samoan outbreak.
Forty-eight of the fatalities were children under 4 years old. The number of immunizations plummeted last year after improperly prepared vaccines led to the deaths of two infants.
www.npr.org