Вакцинопрофилактика пневмококковой инфекции у детей

Pneumococcal infection remains one of the leading reasons for infant mortality from vaccine-preventable infections. Today vaccination is the most effective way to prevent diseases caused by antibiotic-resistant pneumococci. In the article, authors present current approaches to vaccinal prevention of pneumococcal diseases. The plan of action for carrying out active immunoprophylaxis of pneumococcal infection is explained in detail for both healthy children and patients from risk groups for severe pneumococcal diseases development. The published work is based on key points of the guidelines of the Ministry of Health of the Russian Federation on vaccinal prevention of pneumococcal infection (developed and approved by the professional association of pediatricians «The Union of Pediatricians of Russia»).Пневмококковая инфекция остается одной из ведущих причин детской смертности от вакциноуправляемых инфекций. Вакцинация на сегодняшний день является наиболее эффективным направлением профилактики заболеваний, вызываемых устойчивыми к антибактериальным препаратам пневмококкам. В статье коллективом авторов представлены актуальные подходы к вакцинопрофилактике болезней пневмококковой этиологии. Подробно разъяснен алгоритм действий при проведении активной иммунопрофилактики пневмококковой инфекции как здоровых детей, так и пациентов из групп риска по развитию тяжелых форм пневмококковых заболеваний. Публикация основана на ключевых позициях методических рекомендаций Министерства здравоохранения РФ по вакцинопрофилактике пневмококковой инфекции (разработанных и утвержденных профессиональной ассоциацией детских врачей «Союз педиатров России»).КОНФЛИКТ ИНТЕРЕСОВАвторы статьи подтвердили отсутствие конфликта интересов, о котором необходимо сообщить

Ротавирусная инфекция у детей — нерешенная проблема. Обзор рекомендаций по вакцинопрофилактике

These clinical guidelines were developed by the professional association of pediatric specialists «Union of Pediatricians of Russia» and approved by the Association’s Executive Committee at the Congress of Pediatricians of Russia «Actual Problems of Pediatrics». Clinical guidelines are devoted to the problem of rotavirus infection, the relevance of which is determined by the high prevalence level and significant contribution of infectious diarrhea to the mortality pattern of children in the first 5 years of life. We present epidemiological data and detailed information on the infectious agent and pathogenesis of rotavirus infection progression. A detailed picture of clinical manifestations as well as extraintestinal complications is presented. The approach to specific prophylaxis has been reasoned. Practical recommendations for immunization as well as various regimens for administering the vaccine, depending on the age and condition of the patient, are given.Данные клинические рекомендации разработаны профессиональной ассоциацией детских специалистов «Союз педиатров России» и утверждены Исполкомом ассоциации на Съезде педиатров России «Актуальные проблемы педиатрии». Клинические рекомендации посвящены проблеме ротавирусной инфекции, актуальность которой определяется высоким уровнем распространенности и значительным вкладом инфекционной диареи в структуру смертности детей первых 5 лет жизни. Приводятся эпидемиологические данные, подробно описаны особенности возбудителя, патогенез развития ротавирусной инфекции. Представлена развернутая картина клинических проявлений, а также внекишечных осложнений. Обоснована тактика специфической профилактики. Даны практические рекомендации по проведению иммунизации, а также различные схемы введения вакцины в зависимости от возраста и состояния пациента

Immune mechanisms of SARS-CoV-2 and potential drugs in the prevention and treatment of COVID-19

The lack of specific vaccines against SARS-CoV-2, as well as chemotherapy, significantly affected the spread of infection and the number of adverse outcomes of COVID-19. With the discovery of the pathogenesis of coronavirus infection, especially immune mechanisms, the important role of the innate immunity system in interacting with the virus is obvious. The presence of comorbid conditions, as well as the aging of the body, lead to disturbances in the immune response mechanism, low interferon induction, depletion of CD8 -lymphocytes and natural killers and suppression of the effectiveness of both innate and adaptive immunity. The review discusses various mechanisms of antiviral activity associated with the induction of interferon (IFN) production, the use of direct IFN therapy, the use of antiviral drugs, and immunotropic therapy (synthetic immunomodulators), as promising in the prevention and treatment of COVID-19.

Gender Differences in the Level of Antibodies to Measles Virus in Adults

Individuals without a protective antibody level are susceptible to measles infection. There are differences in the persistence of antibodies after vaccination and infection, while the impact of gender on this process has not been sufficiently studied. Measles Ig G antibodies were measured in 1742 employees of a large hospital facility—403 men and 1339 women aged from 25 to 67 years; 15% participants had antibody levels less than the protective threshold of ≥0.18 IU/mL. Significant differences were found in the age group 40–49, where the level of IgG antibodies to measles among men was higher than among women (1.51 IU/mL (0.41; 3.38) vs. 0.70 IU/mL (0.22;1.98) respectively, (U = 3.2, p = 0,001)); in the age group 60 and older, by contrast, the level of antibodies among women was higher compared to men (3.29 IU/mL (1.72; 4.07) vs. 2.90 IU/mL (1.46; 3.53) respectively (U = 2.2, p = 0.03)). The proportion of seronegative women in the age group 40–49 was significantly higher than of seronegative men: 22 [18–26]% and 11 [6–18]% respectively (χ2 = 7.0, p = 0.001). The revealed gender characteristics that affect persistence of measles immunity may be important in personalization of vaccinal prevention for men and women

Immunogenicity and safety of subunit influenza vaccines in pregnant women

Pregnancy is a condition of modulated immune suppression, so this group of patients has increased risk of infectious diseases. Trivalent subunit vaccines, unadjusted Agrippal S1 (group I) and immunoadjuvant Grippol Plus (group II), containing 5 μg of actual influenza virus strains, were administered respectively to 37 and 42 women in the second and third trimester of physiological pregnancy. The administration of subunit influenza vaccines was accompanied by the development of local reactions in no more than 10% of patients, compared with 4.9% of the 41 pregnant women in the placebo group (group III). Systemic reactions were of a general somatic nature, did not differ between vaccinated and placebo groups, and were not associated with vaccination. Physiological births in groups I, II and III were 94.6%, 92.9% and 85.4%, respectively, and the birth rates of children without pathologies were 91.9%, 90.5% and 80.5%, respectively, and were comparable between groups. Vaccination stimulated the production of protective antibodies against influenza virus strains in 64.8–94.5% of patients after immunisation with an unadjusted vaccine and in 72.5–90.0% of patients after the administration of an immunoadjuvant vaccine. After 9 months, antibody levels were recorded in 51.3–72.9% in group I and 54.2–74.2% in group II. Immunisation against influenza in pregnant women provided a high level of seroprotection and seroconversion. Nevertheless, the level of seroprotection against the influenza strain A(H3N2, Victoria) was slightly lower in the group immunised with an unadjusted vaccine compared to those vaccinated with the immunoadjuvant vaccine

Immunogenicity and Safety of the Quadrivalent Adjuvant Subunit Influenza Vaccine in Seropositive and Seronegative Healthy People and Patients with Common Variable Immunodeficiency

Background. Influenza prophylaxis with the use of quadrivalent vaccines (QIV) is increasingly being introduced into healthcare practice. Methods. In total, 32 healthy adults and 6 patients with common variable immunodeficiency (CVID) received adjuvant QIV during 2018–2019 influenza season. Depending on initial antibody titers, healthy volunteers were divided into seronegative (≤1:20) and seropositive (≥1:40). To evaluate immunogenicity hemagglutination inhibition assay was used. Results. All participants completed the study without developing serious post-vaccination reactions. Analysis of antibody titer 3 weeks after immunization in healthy participants showed that seroprotection, seroconversion levels, GMR and GMT for strains A/H1N1, A/H3N2 and B/Colorado, B/Phuket among initially seronegative and seropositive participants meet the criterion of CHMP effectiveness. CVID patients showed increase in post-vaccination antibody titer without reaching conditionally protective antibody levels. Conclusion. Adjuvant QIV promotes formation of specific immunity to vaccine strains, regardless of antibodies’ presence or absence before. In CVID patients search of new regimens should be continued

Vaccine Prevention of Pneumococcal Infection in Children

Pneumococcal infection remains one of the leading reasons for infant mortality from vaccine-preventable infections. Today vaccination is the most effective way to prevent diseases caused by antibiotic-resistant pneumococci. In the article, authors present current approaches to vaccinal prevention of pneumococcal diseases. The plan of action for carrying out active immunoprophylaxis of pneumococcal infection is explained in detail for both healthy children and patients from risk groups for severe pneumococcal diseases development. The published work is based on key points of the guidelines of the Ministry of Health of the Russian Federation on vaccinal prevention of pneumococcal infection (developed and approved by the professional association of pediatricians «The Union of Pediatricians of Russia»)

Rotavirus Infection in Children is an Unsolved Problem. Review of Guidelines for Vaccinal Prevention

These clinical guidelines were developed by the professional association of pediatric specialists «Union of Pediatricians of Russia» and approved by the Association’s Executive Committee at the Congress of Pediatricians of Russia «Actual Problems of Pediatrics». Clinical guidelines are devoted to the problem of rotavirus infection, the relevance of which is determined by the high prevalence level and significant contribution of infectious diarrhea to the mortality pattern of children in the first 5 years of life. We present epidemiological data and detailed information on the infectious agent and pathogenesis of rotavirus infection progression. A detailed picture of clinical manifestations as well as extraintestinal complications is presented. The approach to specific prophylaxis has been reasoned. Practical recommendations for immunization as well as various regimens for administering the vaccine, depending on the age and condition of the patient, are given

Vaccinal Prevention of the Diseases Caused by Human Papillomavirus: Evidence-Based Medicine. Review of Clinical Guidelines

The article is devoted to the urgent problem of papillomavirus infection, the extremely high prevalence of which determines the key contribution to the structure of morbidity and mortality from oncological diseases. A chronic persistent course, resulting in benign and malignant tumors in the infection atrium, makes scientists seek new ways of treatment. A specific vaccinal prevention is recognized to be the only reliable protection method today. The article is an updated review of the clinical guidelines developed and approved by the professional association «Union of Pediatricians of Russia» in 2016 for a vaccinal prevention of the diseases caused by human papillomavirus, first published on pediatr-russia.ru. The widespread introduction of vaccines against human papillomavirus, which have confirmed the clinical efficacy and safety, can significantly reduce the global burden of diseases associated with papillomavirus infection