Immunization with biologically active fractions of deoxyribonucleic acid and subsequent specific infection of mice.
D000818:Animals; D004247:DNA / Q000494:pharmacology*; D007114:Immunization; D051379:Mice; D011008:Pneumococcal Infections; D014611:Vaccination
D004247:DNA
DESOXYRIBONUCLEIC ACID/pharmacology; PNEUMOCOCCAL INFECTIONS/experimental