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In the study of upper respiratory infections, nose and throat cultures for beta hemolytic streptococci3 are essential. Since group A streptococci are implicated in human respiratory infections more than other groups, it is important that streptococci recovered on culture be identified as belonging to group A or not. The finding of streptococci which belong to groups other than A in the nose or throat usually is interpreted as being of little or no clinical or epidemiological importance.

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Lakes Naval Training Center are reported. The efficacy of various vaccines was examined and the results are presented. Related to these is a report on an epidemiologic study of respiratory disease among recruits at the Naval Training Center and the Marine Corps Recruit Depot at San Diego, which showed that methods of handling the men and the environment in which they are placed are closely related to respiratory illness rates.

A medium is reported which enables Neisseria meningitidis to be cultivated while selectively inhibiting most of the normal flora of the nasopharynx.The use of this medium increased the detection of meningococcal carriers by 50 per cent. This medium could be useful, particularly in surveillance programs.