At the period of 1982 - 2003, morbidity rate in pseudotuberculosis and the Yersinia pseudotuberculosis culture rates in groups of servicemen (from different abiotic objects, from humans and small rodents) in different geographic zones were studied. The cases of the isolation of Y. pseudotuberculosis were most frequently registered in groups of servicemen in the Far East and the Kola Peninsula. In these regions the highest morbidity rate in pseudotuberculosis was registered among servicemen. The contamination rate of vegetables during the year was always greater than in other objects under study, including small rodents. The study demonstrated that in the Armed Forces could appear, temporary and relatively constant anthropurgic foci of pseudotuberculosis even in non endemic regions. They were formed in the objects of the food supply service due to the supply of contaminated vegetables. Synanthropic rodents played a secondary role, though they too facilitated the formation of new anthropurgic foci. Under definite conditions anthropurgic foci could exist autonomously, independently of natural foci.
Having evaluated work conditions in sugar-beet seeds treatment with furadan, the authors justified use of an individual protective means for the workers. The recommendations are coveralls of nonwoven materials like Tyvek F, C that are resistant against concentrated and working solutions of furadan. To protect respiratory organs against furadan vapors and aerosols, one should use respirator of sorption filter half mask.
The providing of hothouse workers with vitamins B1, B2, B6, PP, C and E was comprehensively evaluated basing on the study of their actual nutrition and biochemical parameters of their vitamin status--daily excretion of vitamins and their metabolites with urine, vitamin concentration in the blood serum and activity of erythrocytic vitamin-dependent enzymes with calculation of their activation coefficients. Multiple hypovitaminosis detected in the vegetable growers working in hothouses who received normal amounts of these essential nutrients with food, as well as the relationship noted between the vitamin-providing level and the length of working in the hothouse, evidence a possible influence of the occupational factors--the character of work attended by the action of toxic chemical compounds under conditions of the hothouse microclimate. Further investigations should be conducted to determine the vitamin requirements of hothouse workers.
The data are provided on the content of carcinogenous N-nitroso compounds in foods manufactured in a region with a high gastric carcinoma incidence. It was found that foods under analysis have a high content of carcinogenous nitroso compounds. The foods were also found to contain N-nitrosopiperidine, a carcinogen inducing tumors of the gastrointestinal tract.