Influenza A and C in Glasgow, 1954

Abstract

between 35 and 44 years is worth noting, though it may well have been due to chance. It seems reasonable to conclude that a high proportion-probably the majority of persons in this country-have encountered the virus at some time during childhood or early adult life. Our results give no indication of the extent to which infection was accom- panied by illness nor the part played by reinfection in the maintenance of antibody levels. The fact that 8 of the 10 cases reported here were drawn from 7 out of 25 families observed for only 18 months suggests that infection with influenza virus C is not uncommon.