The Incidence Of Transmissible Antibiotic Resistance Amongst Salmonellae Isolated From Poultry In England And Wales

Of 167 strains of salmonellae isolated from poultry in England and Wales in 1968, 7 (4.2 per cent.) were resistant to antibiotics; 3 strains were resistant to tetracyclines, streptomycin and sulphonamides, 2 to streptomycin and sulphonamides, and 2 to tetracyclines; they were all sensitive to ampicillin, neomycin, chloramphenicol, furazolidone and nalidixic acid. The incidence of resistance amongst the Salmonella typhimurium strains examined was 10.9 per cent. and 0.9 per cent. amongst the other strains. All the resistance was of the transmissible type.