Antibiotic studies on beta hemolytic streptococci; penicillin resistance induced in mice and embryonated eggs.
D000818:Animals; D000900:Anti-Bacterial Agents; D051379:Mice; D010403:Penicillin Resistance; D010406:Penicillins / Q000494:pharmacology*; D013290:Streptococcal Infections; D013291:Streptococcus
D000900:Anti-Bacterial Agents; D010406:Penicillins
PENICILLIN/effects; STREPTOCOCCI/hemolytic