Group A streptococcal L forms. I. Persistence among inoculated mice.
D000818:Animals; D001419:Bacteria / Q000254:growth & development*; D005856:Germ-Free Life; D007740:L Forms / Q000254:growth & development / Q000472:pathogenicity; D051379:Mice; D013291:Streptococcus / Q000472:pathogenicity*