Value of influenza vaccine during an outbreak of influenza A in a nursing home, Pyrenees Atlantiques, France, November-December 1995.

A public health officer of the Direction Departementale de l'Action Sanitaire et Sociale des Pyrenees Atlantiques in France was notified of an outbreak of acute respiratory illness among residents of a nursing home on 4 December, 1995. Over 50 of the 69 r