[Application of digital transformations of dietary microdata and factor analysis to study the nutritional patterns of breakfast and its significance in providing the nutritional value of the diet of adults].

Eating disorders with skipping meals are considered as a risk factor for chronic non-communicable diseases. Frequent skipping of meals is associated with the risk of developing metabolic syndrome, type 2 diabetes, and obesity. Breakfast is considered to be the most important meal of the day.

[Prevalence of overweight and obesity in children].

The growing prevalence of overweight and obesity is an urgent problem not only in adults but also in children in both developed and developing countries. of this study was to analyze the prevalence of overweight and obesity and other forms of nutritional disorders in Russian children. .

[Role of calcium in health and reducing the risk of non-communicable diseases].

Calcium as an essential mineral is involved in many processes in the body, being the main one in the mineral matrix of bones and teeth. It is necessary for conducting nerve impulses, blood coagulation, muscle contraction, regulation of the transport of various ions through the cell membrane, glycogenolysis and gluconeogenesis, and the activity of many enzymes. In Russia, insufficient calcium intake is noted.

Current state of chikungunya fever laboratory diagnosis (review of literature).

The article is about methods of chikungunya fever laboratory diagnosis. An algorithm for the study of biological material for the presence of antibodies against chikungunya virus and virus antigens is presented. The overview describes the information about commercial immunodiagnostic and genodiagnostic kits and their detailed specifications.

Influence of Biological Model on the Formation of the Pathogenic Properties of the West Nile Virus Isolate.

Various biological models are used to isolate West Nile virus, but their role as a selection factor that facilitates selection of isolates with certain properties is usually not evaluated. We compared pathogenic properties of three strains of the West Nile virus obtained from one sample of virus-containing material using different models: WNV Volgograd 900m/18 (on the model of suckling mice), WNV Volgograd 900a/18 (on C6/36 cells) and WNV Volgograd 900v/18 (on Vero cells). WNV Volgograd 900m/18 strain demonstrated virulent (LD 5×10±0.