Construction of religious relation at the Northern Azov territories of Ukraine: dialogical measurement

The religion as a specific socio-cultural phenomenon determines the relation to all parts of human existence. The identity of a modern Ukrainian is based entirely on certain convictions, of which religious conviction is significant. The most notable is the effect of the combination of religious and ethnic identities in the North Azov Sea, which is directly linked to a large number of representatives of various ethnic communities and cultures

Retrospective of International Serological Studies on the Formation and Dynamics of the Humoral Immune Response to SARS-CoV-2: from 2020 to 2021

Last year the COVID-19 pandemic caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has started. The new coronavirus is highly contagious and causes severe complications. The mechanisms of humoral immunity and kinetics of SARS-CoV-2 specific antibodies in a population are not well understood. Therefore, we aimed to summarize and analyze numerous global and Russian serological studies for understanding dynamics of the SARSCoV-2 humoral immune response and getting an accurate picture of the seroprevalence to SARS-CoV-2 in the world population. The PubMed and e-library databases were searched from February 2020 to March 2021 using terms “SARSCoV-2”, “antibodies”, “humoral immunity”. At the beginning of the pandemic first studies were cross-sectional by design and were responsible for determination of the seropositivity and for understanding the fundamental humoral immunity parameters of SARS-CoV-2. Since then, longitudinal seroepidemiological studies have been studying antibody kinetics. Seroconversion time for IgM, IgG antibodies varies, but most researchers report the seroconversion of IgM from the 1st to 14th days after the onset of clinical manifestations, and the seroconversion for IgG is around the 14th day with a concentration peak by the 21st day. Regarding seroprevalence we may say about low herd immunity at the COVID-19 pandemic. Thus, global seroprevalence is about 10 %, and more than 20 % for regions with high incidence and among healthcare workers. Seroprevalence studies have to be continued for more accurate monitoring of long-term humoral immunity to SARS-CoV-2, because the majority of the world’s population is still susceptible to SARS-CoV-2 infection

Indicators of the Immune Status in Children after a New Coronavirus Infection

Background. The mechanism of the immune response in patients with COVID-19 is still poorly understood and differs from other respiratory infections. Immunodeficiencies and age-related characteristics of immunity can be regarded as factors influencing reinfection and a predisposition to prolonged persistence of SARS-CoV-2. Most of the studies report about post-infection immunity to SARS-CoV-2 for adults and less for children. However, understanding the dynamics of antibody production to SARS-CoV-2 among children as well as other unique features of immune response is extremely important, because this provides to avoid possible complications and long-term outcomes of COVID-19, and predict the epidemic spread of the new coronavirus in the organized groups of children such as kindergartens, schools, study groups and clubs.Aim: to evaluate the humoral and cellular immunity after SARS-CoV-2 infection in children.Materials and methods. We reported data of the first phase prospective cohort study of immunity among 60 children living in Irkutsk, Russia within a month after SARS-CoV-2 infection, which took place in October and November 2020.Results. Immunity of children one month after SARS-Cov-2 infection was characterized by suppressed cell-mediated and humoral immunity, and phagocytosis dysfunction. Reduced phagocytosis by neutrophils was noted for 61.6 % of individuals.Conclusions. Children after COVID-19 had impaired immunity to SARS-CoV-2, which may be a predictor of chronic infection and other long-term outcomes of COVID-19

Flu in children: Clinical, laboratory indicators and cytokine profile parameters

Introduction. Respiratory diseases occupy a leading place in the structure of pathology of childhood. The proportion of influenza and acute respiratory viral infections among all infectious diseases is 90 %. The literature describes gender differences in the immune response to respiratory infections in children, but there is a gap in  the  description of the cytokine profile in  children with influenza depending on gender and age.The aim. To analyze clinical and laboratory parameters as well as cytokine profile parameters in children with influenza.Materials and methods. A single-stage descriptive study was conducted with the participation of 50 children from 1 to 11 years of age with a diagnosis of influenza who were on inpatient treatment at the Irkutsk Regional Infectious Diseases Clinical Hospital from December 2018 to January 2019. The clinical and laboratory features of the course of influenza in children, the duration of treatment were determined. The concentration of cytokines interleukin (IL)  1β, IL-4, IL-6, IL-8, tumor necrosis factor alpha (TNF-α), interferon alpha and gamma (INF-α, INF-γ) in blood plasma was determined by enzyme-linked immunosorbent assay (ELISA) using diagnostic test systems manufactured by Vector-Best (Novosibirsk, Russian Federation) on the analyzer Multiscan EX (Thermo Electron, Germany).The control group consisted of practically healthy children without signs of acute respiratory viral infection (n = 50; mean age 5.3 ± 2.6 years).Results. When comparing clinical and laboratory data and cytokine profile parameters in children with influenza, no gender differences were found. There was a statistically significant increase in the level of pro-inflammatory cytokines IL-1β, IL-6, IL-8, TNF-α, INF-α, as well as CRP, anti-inflammatory cytokine IL-4 in influenza in all age categories, in contrast to the control group (p < 0.05).Conclusion. Influenza in children of different sexes proceeds classically without a statistical difference in clinical and laboratory parameters and in the level of cytokines

Comparison of attitude of Indian and Russian parents to children’s vaccination

Background. The vaccine preventable diseases outbreaks have become more frequent in recent decades and the lack of global vaccine awareness has been increasing and deteriorating vaccine compliance.   The aim. To assess the attitude towards vaccination of parents from India and Russia.   Methods. 1620 parents from Russia (Irkutsk city) and 214 parents from India (Kerala state) took part in the international cross-sectional multicenter study via survey method.   Results. Parents from both countries showed good adherence to vaccination, only 1 % of Indians and 2 % of Russians did not vaccinate their children. More than 90 % of Russians took information from pediatricians compared with other sources with a prevalence of pediatricians working in the public health system 91.7 % (95 % CI: 90.2–92.9), whereas only 50 % of Indians were informed about vaccination from pediatricians (p < 0.0001). The main source of vaccine information for Indian parents was Internet (52.8 %; 95 % CI: 46.1–59.3) and mass-media (83.6 %; 95% CI: 78.1–87.9), whereas Russians resorted to this source much less (0.3 %; 95 % CI: 0.1–0.7 for Internet; and 4.3 %; 95 % CI: 3.4–5.4 for mass-media; p < 0.0001). Interestingly, while the vast majority of Russians received information about vaccination from a pediatrician, 71.2 % (95 % CI: 68.9–73.3) wanted to know more. Indians suffered from a lack of information too, but not as much (63.1 %; 95 % CI: 56.4–69.3; p = 0.01).   Conclusion. Despite of a good attitude to vaccination of parents from India and Russia the lack of vaccine information was registered

Intestinal damage in patients with new coronavirus infection (Covid–19) due to connective tissue dysplasia

The aim of the study - to evaluate the intestinal damage in patients with COVID–19 on the background of CTDЦель исследования – оценить поражение кишечника у пациентов с COVID–19 на фоне ДС