Thread recirculates the myth that vaccines caused the 1918 flu pandemic

The thread promotes a myth that has persisted for decades. The 1918 influenza pandemic killed between 25 million and 50 million people worldwide. Vaccine opponents have long claimed that experimental vaccines caused the outbreak, but this is false. When the 1918 influenza began circulating, very few vaccines had been developed, and even fewer were in wide use. The first flu vaccine wasn’t developed until the 1930s, and the first meningitis vaccine, which the myth alleges sparked the 1918 flu outbreak, was developed nearly half a century after that pandemic.

Fact-checking sources: Reuters