Diseases and Pathogens

Mycobacteriosis is an infectious disease caused by non-tuberculous mycobacteria (NTM), characterized by complicated verification, as it coincides in clinical, radiological and pathoanatomic characteristics with tuberculosis, the complexity of …

Objective. To study molecular and genetic features of M. tuberculosis (MTB) and human immunodeficiency virus (HIV) in patients with unfavorable course of HIV infection and tuberculosis. Materials and Methods. A total of 105 patients with HIV infection and newly diagnosed tuberculosis in whom tuberculosis was confirmed by microbiological and molecular genetic methods were included. The follow-up period was at least 6 months. Based on the results of the examination during treatment, all patients were divided into two groups: group 1 – patients with favorable course of HIV infection and tuberculosis (n = 78), group 2 – patients with unfavorable course of HIV infection and tuberculosis (n = 27).

Objective. To assess impact of the COVID-19 pandemic on daily life and mental health of healthcare professionals in public medical institutions of the Russian Federation from their perspective and their attitude to the healthcare system’s response measures. Materials and Methods. From September to October 2024, as part of the qualitative data study, a semi-structured interview survey was conducted among 32 physicians and 18 nursing staff working during the COVID-19 pandemic in public outpatient and inpatient public medical institutions of the Russian Federation, repurposed or specially deployed to treat patients with COVID-19.

Objective. To evaluate level of knowledge, attitudes, and practices (KAP) concerning sepsis and antimicrobial resistance (AMR) among medical students in the Russian Federation. Materials and Methods. A multicenter, cross-sectional survey was conducted among students from six medical universities using a validated questionnaire (Cronbach’s alpha: 0.74) developed based on the Knowledge, Attitudes, and Practices (KAP) model. Results. The study included 1052 respondents, comprising 315 (29.9%) males and 737 (70.1%) females, with a median age of 22 [21; 24] years.

Objective. To study molecular biological features of Streptococcus agalactiae strains isolated from pregnant women and women in labor in various regions of the Russian Federation. Materials and Methods. The study included 205 S. agalactiae strains isolated from pregnant women and women in labor in various regions of the Russian Federation for the period 2022–2023. The strains were isolated from vaginal rectal smears of pregnant women during screening at 35–37 weeks of gestation and from vaginal discharge of women in labor.

Objective. To determine frequency and spectrum of cytomegalovirus (CMV) resistance mutations to antiviral drugs in immunocompromised children. To study clinical course of resistant CMV infection in this patient population. Materials and Methods. This prospective study included 120 patients of the Dmitry Rogachev NMRC PHOI who mainly were recipients of allogeneic hematopoietic stem cell transplantation (HSCT) with confirmed CMV infection (median age – 8.9 years). The study inclusion criterion was the possible development of CMV drug resistance.

Modern diagnosis of syphilis, despite the widespread use of serological methods, has several limitations, including insufficient specificity of non-treponemal tests and challenges in differentiating infection stages. This article reviews the …

Klebsiella pneumoniae is one of the most common pathogens causing community-acquired and nosocomial infections in hospitalized patients. Among the two known pathotypes, hypervirulent (hvKp) has become a matter of serious concern, as such isolates can …

This article analyzes epidemiological, pathogenetic, and clinical features of respiratory syncytial virus (RSV) infection in adults. It provides a review of current data on medical and healthcare burden of RSV in various regions worldwide, actual …

Objective. To investigate the genetic diversity of the Russian population of C. trachomatis. Materials and Methods. We analyzed 42 clinical isolates of C. trachomatis obtained in 2024. MLST typing was performed using the Uppsala scheme (genes CT058, CT144, CT172, hctB, pbpB) and sequencing of the ompA gene for serotype determination. Results. 8 serotypes (E – 50.0% predominates) and 26 sequence types (ST) were identified, including 8 new ones (19.0% of isolates).