Acta Microbiologica Academiae Scientiarum Hungaricae, Volume 29

Acad acid activity agar animals antibiotics antibodies antigen aureus Bact bacteria BERTÓK Budapest cell cultures clinical wild type coli strains colonies concentration cotransduction Csongrád Csongrád county determined DNA bands dose effect of endotoxin ELISA endotoxin enterotoxin enzyme epidermidis erythromycin Escherichia coli experiments extrachromosomal DNA filtrates flexneri fluid fractions heavy metal ion hung Hungary Hungary Acta Microbiol ileal loop Immun Immunol incubated infection inhibition inoculated Institute of Hygiene intestinal intravenously jejuni laboratory LCM virus lincomycin lipopolysaccharide lymphocytes macrolide Materials and methods medium membrane metal ion resistances methanol Microbiology mutants NCTC oleandomycin ovalbumin pallidum antigen parent endotoxin patients penicillinase penicillinase production PHA titre phage plasmid prepared protein purified rabbit gut loop reaction Salmonella sensitive sera serum samples sheep-pox Shigella specific spiramycin strains isolated studies subline suckling mice supernatant Table toxic toxin transduction vaccine values wild type strains µg/ml