title: Tetracycline-resistant beta-haemolytic streptococci in South-west Essex: decline and fall.
abstract: The prevalence of tetracycline-resistant beta-haemolytic streptococci in South-west Essex has been recorded over the past 10 years. It has fallen from a peak of 35% in 1965 to a level of 9.2% in 1972. Ear infections no longer provide the highest incidence of these organisms; vaginal, perineal, and skin infections now seem to be of greater relative importance but throat swabs still provide the greatest actual number of isolations. Erythromycin-resistant strains are still rare.
mesh_terms: D004352:Drug Resistance, Microbial; D004423:Ear / Q000382:microbiology; D004427:Ear Diseases / Q000382:microbiology; D004739:England; D004917:Erythromycin / Q000494:pharmacology; D005260:Female; D006801:Humans; D009666:Nose / Q000382:microbiology; D010256:Paranasal Sinuses / Q000382:microbiology; D010502:Perineum / Q000382:microbiology; D010614:Pharynx / Q000382:microbiology; D012871:Skin Diseases / Q000382:microbiology; D013183:Sputum / Q000382:microbiology; D013290:Streptococcal Infections / Q000453:epidemiology; D013297:Streptococcus pyogenes / Q000187:drug effects*; D013752:Tetracycline / Q000494:pharmacology*; D014623:Vaginal Diseases / Q000382:microbiology; D014844:Vulva / Q000382:microbiology; D014947:Wounds and Injuries / Q000382:microbiology
chemical_list: D004917:Erythromycin; D013752:Tetracycline