1. Acheson, F., andHewitt, D., Spread of influenza in a factory, Br. J. Soc. Med.6:68–75 (1952).
2. Ada, G. L., Lieung, K.-N., andErtl, H., An analysis of effector T cell generation and function in mice exposed to influenza A or Sendai viruses, Immunol. Rev.58:5–24 (1981).
3. Alling, D. W., Blackwelder, W. C., andStuart-Harris, C. H., A study of excess mortality during influenza epidemics in the United States, 1968–1976, Am. J. Epidemiol.113:30–42 (1981).
4. Andrewes, C. H., andGlover, G. E., Spread of infection from the respiratory tract of the ferret. I. Transmission of influenza A virus, Br. J. Exp. Pathol.22:91–97 (1941).
5. Assaad, F., Bektimirov, T., and Ljungars-Esteves, K., Influenza/world experience, in: The Molecular Virology and Epidemiology of Influenza (C.Stuart-Harris, andC. W.Potter, eds.), pp. 5–13, Academic Press, Orlando, FL, 1984.