To the Editor.— Group R streptococci were reported in 1963 by de Moor.¹Such streptococci were isolated from infections in pigs and piglets. The initial stage of the infection was bacteremia, followed by septicemic complications. In 1968, the first report on streptococci of group R causing infection in man appeared. Two cases of meningitis and one fatal case of sepsis were reported.²Evidence was offered which substantiated that the streptococci isolated from these cases were serologically and biochemically identical with a reference strain isolated from a pig.²One of the human strains occurred in the a-form, the other produced a soluble hemolysin. Since then, so far as we know, no reports of group R streptococci causing infections in man have appeared. Therefore, we find it relevant to present a case of meningitis caused by such an organism.³ The new strain (L.J./69) produced a soluble hemolysin and
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Perch et al. (1971) studied this question.