[The structure, morbidity level and the frequency of acute diarrheal diseases in children in the preschool period (longitudinal cohort research)]. / Struktura, uroven' zabolevaemosti i kratnost' zabolevanii ostrymi diareiami v doshkol'nyi period zhizhi detei (kogortnoe longitudinal'noe issledovanie).

Some new aspects of acute intestinal infections incidence rate have been revealed in longitudinal cohort study, whose results are proposed for use in the system of prophylactic measures. The group of susceptible children frequently suffering from acute intestinal infections is considered to be of particular scientific and practical importance, for it is this group which determines the level of morbidity in these infections.

[The main trends in a diphtheria epidemic process and the potentials for its elimination in a large city]. / Osnovnye tendentsii épidemicheskogo protsessa difterii i vozmozhnosti ee likvidatsii v usloviiakh krupnogo goroda.

In recent years the tendency towards the activation of the epidemic process of diphtheria, i.e. the appearance of cases of diphtheria simultaneously with the increased levels of circulation of toxigenic and nontoxigenic Corynebacterium diphtheriae and with antitoxic immunity characteristics in children and adults constantly remaining low, has been registered. For the effective control of diphtheria, the profound study of such problems as bacterial carriership, antibacterial immunity and the development of supplementary means of specific prophylaxis is necessary.

[Seasonality of Sonne dysentery among organized and unorganized groups of children in years with different morbidity levels]. / Sezonnost' dizenterii Zonne sredi organizovannykh i neorganizovannykh detei v gody s raznymi urovniami zabolevaemosti.

Differences in the monthly distribution of morbidity in Sonne dysentery among children of preschool age in children's institutions and among those not attending such institutions have been revealed. In years characterized by a high morbidity level, the epidemic process develops simultaneously among all children with some prevalence in its activity being observed from January to August among children not attending children's institutions and from September to December among institutionalized children. In years characterized by a low morbidity level, the rise of morbidity among children aged up to 3 years, both seasonal and not connected with the season (in January), is determined by the rise of morbidity among those children who attend children's institutions, while among noninstitutionalized children aged 4-6 years the seasonal rise of morbidity begins and becomes manifest earlier.

[Infectious morbidity in children of both sexes during the 1st 7 years of life]. / Infektsionnaia zabolevaemost' detei raznogo pola pervykh 7 let zhizni.

General morbidity in infectious diseases, morbidity in the main groups of infections and in individual nosological forms was dynamically studied in children born in 1971-1973 during the first 7 years of life in connection with their sex. In a vast majority of cases of infection boys showed a higher morbidity rate, starting already from the first 6 months of life, the maximum differences in morbidity rate for individual diseases being observed at different age. In some diseases (whooping cough, chickenpox, rubella) morbidity rate was higher among girls.

[Risk factors in the epidemiology of dysentery]. / Faktory riska v épidemiologii dizenterii.

The general tendency of a decrease in the morbidity rates of dysentery induced by Shigella sonnei and Shigella flexneri (separately) from Monday to the end of the week (Saturday-Sunday) has been revealed, and at the same time the "infection risk" for both kinds of salmonellosis has been found to fall on the last days of the week (Friday-Sunday).

[Infectious morbidity of children up to 7 years of age in relation to the season of their birth]. / Infektsionnaia zabolevaemost' detei do 7 let v sviazi s sezonom ikh rozhdeniia.

The total morbidity in infectious diseases and morbidity in the main groups of infections and in individual nosological forms among 1174 children born in 1971-1972 during the first 7 years of their life were studied. The morbidity rates noted among the children during the first and second six-month periods of their life were found to be related to the season when they were born, and the morbidity level in the first year of their life greatly determined morbidity in all subsequent years.

[Incidence of infectious diseases in children in the 1st 7 years of life]. / K voprosu o chastote zabolevanii detei pervykh 7 let zhizni infektsionnymi bolezniami.

The dynamics of changes in the occurrence of infectious diseases in 1180 children during the first 7 years of life has been studied. The possibility of dividing children into groups with rare and frequent occurrence of diseases as early as during the first years of life has been demonstrated. The group of children falling ill frequently determines, to a considerable extent, the morbidity level in infectious diseases among children of the corresponding age group.

[Hereditary blood factors and infectious diseases in children in the 1st 7 years of life]. / Nasleduemye faktory krovi i infektsionnye zabolevaniia detei pervykh 7 let zhizni.

Infectious morbidity in respect to 23 nosological forms was studied in 958 children with known blood groups and Rh factors during the first 7 years of their life. The absence of statistically significant differences in morbidity rates in children with different age groups was revealed in respect to 16 nosological forms. Significant differences in morbidity rates in children with different blood groups were revealed in respect to parotitis, rubella, scarlet fever, E. coli infections, bronchitis and pneumonia; similar differences linked with Rh factor were observed only in cases of measles, rubella and tonsillitis.

[Method for the short-term prognosis of annual morbidity indices in Sonne-type dysentery]. / Metod kratkosrochnogo prognozirovaniia godovykh pokazatelei zabolevaemosti dizenteriei vida Zonne.

A method for making the short-term prognosis of the annual morbidity rate in Sonne dysentery, both total and among individual groups of population, is presented. The preliminary prognosis is based on the expected data on meteorological factors, supplied by the weather forecast service, and the final prognosis, on the actual prognostic factors for June-July of the current (prognosed) year.

[Manifestations of the cyclic nature of the epidemic process in dysentery]. / Proiavleniia tsiklichnosti v épidemicheskom protsesse dizenterii.

Different forms of dysentery, especially those caused by Sh. sonnei and Sh. flexneri, have been found to differ considerably in their cyclic recurrence. The development cycles of the epidemic processes of dysentery have an objective character, occur in the presence of any tendencies in the morbidity rate, and depend on the natural factors. Thus, the cycles of increase and decrease in morbidity are 3, 6, 9, 12 years for dysentery caused by Sh. sonnei and 6, 7, 8 years for dysentery caused by Sh. flexneri.

[Experience in organizing primary specialization in epidemiology]. / Opyt organizatsii pervichnoi spetsializatsii po épidemiologii.

Experience in the organization of the primary stage of specialization in epidemiology is described. In the process of this specialization the students study the subject and the methods of an epidemiologist's work, practice their skills in epidemiological analysis, acquire experience and skills necessary for work with scientific literature and in research. Grounds for the necessity of summarizing the working experience of different chairs in the form of methodological recommendations to be universally used through the country are given.

[Water-borne outbreaks of rotavirus infections]. / Gruppovye zabolevaniia rotavirusnoi étiologii s vodnym putem rasprostraneniia.

The clinico-epidemiological characteristics of group rotavirus infection observed in one settlement in March-April is presented. 173 cases of infection were registered in all age groups (children under 7 years constituted only 10.4% of the patients). In most of the apartments found to be the foci of infection only one patient was registered. The virological study of fecal samples from 24 patients showed the presence of human rotaviruses in the feces of 10 patients (41.7%). Neutralizing antibodies in titers of 1:4 to 1:64 were detected in all taken paired sera (21). THe clinical study of 53 hospitalized patients showed that in all cases the infectious process had acute beginning. In most patients the disease took mild forms. The peculiarities of the distribution of the patients in different age groups, the location of the foci of infection and its seasonal character, as well as some objective data on the presence of pollutions in the water mains, indicated that this infection could spread through water via the system of centralized water supply.

[Use of data on Shigella contamination and immunity indices for studying the activity of the epidemic process in dysentery]. / Ispol'zovanie dannykh o vysevaemosti shigell i pokazatelei immuniteta s tsel'iu izucheniia aktivnosti épidemicheskogo protsessa pri dizenterii.

The comparative study of the monthly distribution of characteristics indicating the levels of contamination with Sh. sonnei and Sh. flexneri separately, as well as the seasonal dynamics of the corresponding antibodies, in the years with high and low morbidity levels has been made with the use the indirect hemagglutination test. The possibility of using these characteristics for the evaluation of the activity of the epidemic process in dysentery caused by Sh. sonnei is shown.