RESUMO
The sexually transmitted infections represent an actual medical social problem. The purpose of study is to analyze characteristics of their prevalence in various social groups of population. The data from annual reports on morbidity in the Republic of Udmurtia in 2006-2015 is analyzed. The analysis of morbidity of sexually transmitted infections during the mentioned period demonstrated the highest morbidity of chlamydia infection (from 135 in 2006 to 194,8 in 2015 per 100 000 of population) and trichomoniasis (from 63.5 in 2006 to 183.4 in 2015 per 100 000 of population). In the structure of morbidity in 2006 trichomoniasis went to 25.6±1.2%, chlamydia infection -- 19±0.9%, syphilis -- 17.6±0.8%. In the end of analyzed period, chlamydia infection was in the lead in overall structure of morbidity. The analysis of morbidity subject to social belonging demonstrated that in relation to syphilis and trichomoniasis preponderance the diseased was in the direction of non-working population while in case of other infections in the direction of workers of middle and minor business. The results of study demonstrated the necessity of development of activities in area of primary prevention among working population, workers of middle and minor business and student youth.