Mar-
The Cha~zging tin M. Kaplan and Robert G. Webster, in
Face of Flu Scientific American (Dec. 1977), 415
Madison Ave., New York, N.Y. 10017.
Influenza was reported Hippocrates in Greece as early as 412 B.C. In 1918-19, it reached pandemic proportions in Europe, Asia, and America, killing 20 to 40 million people. Until recently, however, little was known about the disease.
The influenza virus was isolated in pigs during the 1920s, in humans a decade later. Subsequently, the influenza A virus,...