SARS-CoV-2 Saliva Mass Screening in Primary Schools: A 10-Week Sentinel Surveillance Study in Munich, Germany.

Representative, actively collected surveillance data on asymptomatic SARS-CoV-2 infections in primary schoolchildren remain scarce. We evaluated the feasibility of a saliva mass screening concept and assessed infectious activity in primary schools. During a 10-week period from 3 March to 21 May 2021, schoolchildren and staff from 17 primary schools in Munich participated in the sentinel surveillance, cohort study.

Uranium and thorium contents in soils and bottom sediments of lake Bolshoye Yarovoye, western Siberia.

The uranium and thorium contents in the soils and bottom sediments of the Lake Bolshoye Yarovoye natural system correspond to the data for the steppe climate zone and are noticeably lower than the background values for the Altai Territory as a whole. Factors that reduce the content of uranium and thorium are: 1 - lighter grain size distribution of the substrate, and, accordingly, the soils in this area; 2 - low content of organic matter (high ash content at 600 °C); 3 - the presence of significant quantities of quartz and calcite; 4 - general salinization of soils and the development of the solonchak process; 5 - remoteness from the region of material removal from the Altai mountains with its uranium-thorium-bearing granites and various mineraliszation. The distribution of uranium and thorium in the soils of the catchment area is heterogeneous.

[Medical and social aspects of dermatoses morbidity in military personnel serving in a region of the Far North].

Analysed the possibility of dermatosis as an adaptive health disorder in military personnel serving in a region of the Far North. 127 men took part in this research; the average age is 19,5+/-0,7 years. 89 patients with atopic dermatitis and 38 patients with psoriasis were examined and proceeded with the treatment.

[Results of the experiment of skin disease reduction in military personnel of Air-Force troops].

The article reflects the results of the experiment of skin disease reduction in the Airborne troops. Some aspects of skin disease in the individual armed services are revealed, the reasons of its increase in comparison with the analogous data in the Armed Forces of the Russian Federation in whole, concrete measures to reduce the number of diseases are offered. The most effective interventions are clothing exchange and bath operations 2 times a week, as well as the use of personal hygiene kits.