A human aorta transplant is performed, the hepititis A virus is isolated and photographed, and penicillin is synthesized.

26 Jan.

A new antibiotic, Terramycin, is developed.

7 Mar.

Blood tests for tuberculosis are introduced.

14 Apr.

Stomach cancers are detected using swallowed radioactive pills.

18 Apr.

A patient pronounced dead during surgery is revived through heart massage.