Self-Identity Development among Indigenous Adolescents from the Far North of Russia.

Self-identity is one of the fundamental needs of an individual. The most significant period of a person's self-identity development is adolescence. The aim of this empirical study was to examine self-identity development among indigenous adolescents from the subarctic region of Russia.

Gender Identity Development among Teenagers Living in the Subarctic Region of Russia.

Gender identity is an important element of an individual's identity and is one of the regulators of human behavior while acquiring social roles. The aim of this empirical research is to study gender identity development among teenagers living in the subarctic territories of Russia. The results show the correlation between types of gender identity among male and female teenagers, the dynamic in the correlation between gender identity types during adolescence and the characteristics of each type of gender identity in adolescence from the point of view of psychological properties.

[State of collective immunity against poliomyelitis in some regions of Russia].

Aim: Study the state of collective immunity against poliomyelitis in 7 regions of Russia in the last 3 years.

Materials And Methods: 2579 sera were studied for antibodies against poliomyelitis virus. Antibodies (AT) against 3 types of viruses were determined in neutralization reaction in RD cell culture, the state of collective immunity in the examined individuals was evaluated by the percent of individuals with AT against a type of poliovirus and geometric mean AT titer.

[Herd immunity against poliomyelitis in children in the Moscow Region].

Herd immunity against poliomyelitis was studied in 1391 children and adolescents from 10 towns of the Moscow Region. It was ascertained that the values of herd immunity against poliomyelitis virus type 1 were high everywhere and those of herd immunity against poliomyelitis virus type 2 were high and very high in 9 towns and below the WHO minimum levels (80%). The values of herd immunity against poliomyelitis virus type 3; they were lower than the required minimum in 2 towns and very low in 2 other towns arouse alarm.

[Chronic congenital Coxsackie virus infection in the etiology of allergic disease in children].

The authors prove the involvement of congenital Coxsackie virus infection in the etiology of allergic diseases in children: 1) indications of high risk of vertical transmission of viruses of this group from mothers with persistent infection to children are more incident in the history of mothers whose children develop allergies in comparison with healthy age-matched children (83 vs. 38.8%); 2) Coxsackie viruses are detected in sick children more often than in healthy ones (58.