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This large volume is chiefly a review of the literature on the common cold. The authors do not believe that the common cold is a definite single disease caused by one organism but a group of diseases caused by several different species of organisms. They divide colds into three groups — bacterial, allergic, and possibly virus colds. Their fifteen years of "exceedingly careful" study of the bacterial flora of the respiratory tract in a limited number of persons during health and during colds led them to conclude that pneumococci, B. influenzae, streptococci and M. catarrhalis are definite primary causes of colds. They point out that Webster and Hughes and Clow in America have come to the same conclusion after careful research. There is abundant scientific proof, they say, which shows that chill is an important predisposing cause of colds. The incidence of colds in a community immediately rises after a
The Common Cold, with Special Reference to the Part Played by Streptococci, Pneumococci, and Other Organisms. JAMA. 1933;100(24):1959. doi:10.1001/jama.1933.02740240055034
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