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Convalescent plasma: A COVID-19 treatment speeds to clinical trials

Convalescent plasma: A COVID-19 treatment speeds to clinical trials

In January 1934, J. Roswell Gallagher faced a major problem. The staff physician at a boys' boarding school outside Philadelphia learned that one pupil, identified as C. Y., had been exposed to measles. While confined to the school's infirmary, C. Y. exposed two other boys. Fearing a measles outbreak, Gallagher took decisive action. He collected blood from C. Y., purified the plasma that was rich in antibodies against the measles virus, and administered it to 62 other students. Three developed mild symptoms, but no one else got sick.