FEATURES OF EPIDEMIOLOGY OF PATHOGENS OF INFECTIOUS DISEASES OF UPPER RESPIRATORY WAYS IN CHILDREN OF PRESCHOOL AGE IDENTIFIED AT THE AMBULATORY STAGE
The features of epidemiologists of infectious diseases of the upper respiratory tract in children of preschool age, identified in the outpatient stage, were established. 436 children underwent complex bacteriological studies of the mucous membrane of the upper respiratory tract. The most frequent representatives of microorganisms that cause infectious diseases of the upper respiratory tract of children of preschool age were identified: for the years 2012-15, mainly represented by pyogenic cocci: Streptococcus pneumonia, Streptococcus pyogenes and Staphylacoccus aureus. The epidemiological features of the spread of the dominant pathogens of the nasal pharynx of children for 2017-2018 have been determined, Streptococcus mitis (53.5%) are predominant. For many decades, these microorganisms were considered non-pathogenic. The frequency of excretion of Staphylacoccus aureus was significantly reduced (17.8%). The features of dysbiosis of the nasopharyngeal microbiota in preschool children at the outpatient treatment stage were determined and the golden staphylococcus in the culture was identified, which indicates the first-degree mucosal dysbiosis (13%). The sowing of associations of pathogenic microorganisms and gold staphylococci with pathogenic pharyngeal pharyngeal bacteria - the second degree of 2 degree disbiosis was 10%.