The largest, most devastating outbreak of an infectious diseasein modern history occurred in 1918, when a highly virulent influenzaA (H1N1) virus spread throughout the world and killed between20 million and 40 million people. Additional epidemics occurredin 1957 (H2N2) and 1968 (H3N2), both originating in Asia andeach killing approximately 1 million people. These hauntingmemories have led to widespread concern about the ongoing outbreakof avian H5N1 influenza in Asia.
Certain parallels between the "Spanish flu" of 1918 and H5N1justify this concern. Like the 1918 virus, H5N1 influenza hasunusually high virulence and can capitalize . . . [Full Text of this Article]
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From the Hospital for Tropical Diseases (T.T.H.) and the Oxford University Clinical Research Unit, Hospital for Tropical Diseases (M.J., J.F.), Ho Chi Minh City, Vietnam.
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