[Streptococcus group A L-form survival in mouse peritoneal macrophages]

The survival of the L-forms of group A streptococci in peritoneal macrophages of SHR mice has been studied microbiologically and by the method of indirect immunofluorescence in vitro and in vivo. The phagocytosis of the L-forms, proceeding more actively in vivo, has been found to occur within 1-3 days after inoculation. The preservation of some viable L-forms in macrophages for 6-7 days may apparently facilitate their persistence in the body.