Asymptomatic pharyngeal carriage of beta-haemolytic streptococci and streptococcal pharyngitis among patients at an urban hospital in Croatia
- 1 July 1993
- journal article
- Published by Springer Nature in European Journal of Epidemiology
- Vol. 9 (4) , 405-410
- https://doi.org/10.1007/bf00157398
Abstract
In a one-year study at the University Hospital of Infectious Diseases in Zagreb, Croatia the rate of asymptomatic throat carriage of beta-haemolytic streptococci was investigated. Throat carriage was investigated in 1796 patients, none of whom had a sore throat nor signs and/or symptoms of a respiratory tract infection. The carrier rate of beta-haemolytic streptococci was 8.3%, for group A streptococci 6%, group B 1.3%, group C 0.3% and group F 0.1%. The highest rate was observed in the 6 to 14 year age group: 13.8% for all streptococcal groups, 11.7% for group A alone. The proportion of non-A streptococci was higher in older age groups. Tonsillectomised individuals were less frequently carriers. No sex or season-dependent variations were observed. In a four-month study of 629 patients with pharyngitis the throat cultures yielded: group A streptococci in 44.7%, group B in 1.7%, group C in 0.8%, and group G in 0.6% of the patients. Group A streptococcal rates in carriers compared to rates in patients with pharyngitis suggest that approximately one fourth of the schoolchildren with culture-positive pharyngitis actually are not truly infected, but only carriers currently having a sore throat of non-streptococcal etiology. Antibiotics were administrated to 605 (96.2%) patients with pharyngitis; in 571 (94.4%) of the cases before culture results became available. After culture-negative results were obtained the therapy was discontinued in only 28.5% of the cases. The throat culture is the standard for laboratory testing of group A streptococcal infection and should have more influence on the management of patients with pharyngitis at our hospital.Keywords
This publication has 19 references indexed in Scilit:
- Beta-haemolytic non-group A streptococci and pharyngitis: A case-control studyEuropean Journal of Pediatrics, 1991
- Streptococcus pyogenes in the throat: a study in a small population, 1962–1975Epidemiology and Infection, 1981
- The group A streptococcal upper respiratory tract carrier state: An enigmaThe Journal of Pediatrics, 1980
- Pharyngitis due to group C hemolytic streptococci in childrenThe Journal of Pediatrics, 1976
- QUANTITATIVE THROAT-SWAB CULTURE IN THE DIAGNOSIS OF STREPTOCOCCAL PHARYNGITIS IN CHILDRENThe Lancet, 1976
- A new nephritogenic streptococcusEpidemiology and Infection, 1969
- EPIDEMIC OF PHARYNGITIS DUE TO STREPTOCOCCI OF LANCEFIELD GROUP GThe Lancet, 1969
- Beta-Hemolytic Streptococci in Survey Throat Cultures in an Indian PopulationAmerican Journal of Public Health and the Nations Health, 1961
- The distribution of carriers ofStreptococcus pyogenesamong 2,413 healthy childrenEpidemiology and Infection, 1954
- OBSERVATIONS ON THE EPIDEMIOLOGY OF STREPTOCOCCAL PHARYNGITIS AND THE RELATION OF STREPTOCOCCAL CARRIERS TO THE OCCURRENCE OF OUTBREAKS 1Journal of Clinical Investigation, 1944