Diseases and Pathogens | CMAC

Diseases and Pathogens

Two-level combined probiotics – a new paradigm for the prevention of respiratory tract infections and antibiotic-associated conditions

In light of the widespread growth of antimicrobial resistance, the decline in the effectiveness of existing antibiotics, and the global shortage of innovative antibacterial drugs, preventing infectious diseases and preserving antibiotics for future …

Development of a molecular typing scheme for Chlamydia trachomatis based on the analysis of highly variable genomic loci

Objective. To develop a molecular typing scheme for Chlamydia trachomatis to enable molecular epidemiological monitoring of this pathogen in the Russian Federation. Materials and Methods. A set of conserved and accessory genes from 430 C. trachomatis isolates of diverse geographical and phylogenetic origins was analyzed to identify loci involved in the intraspecies clustering of the pathogen. Whole-genome sequencing data for the isolates in FASTA and FASTQ formats were obtained from the PubMLST database.

Etiological structure of respiratory tract infections in patients of different age groups with primary ciliary dyskinesia

Objective. To study etiological structure of respiratory tract infections in patients with primary ciliary dyskinesia (PCD) across different age groups. Materials and Methods. A total of 173 patients with a confirmed diagnosis of PCD from various regions of the Russian Federation were examined from 2023 to 2025. The patients were divided into 4 age groups: children (0–6 years) – 42 patients; children (7–12 years) – 42 patients; adolescents (13–17 years) – 43 patients; adults (18 years and older) – 46 patients.

Current concepts of the role of viruses as an etiological factor in sepsis

Sepsis is a life-threatening condition resulting from a dysregulated immune response to infection and characterized by multiple organ dysfunction. Historically, the contribution of viruses to sepsis pathogenesis has been underestimated, largely due …

Local treatment of wound infection: what’s new in the last decade?

Local treatment of wound infections remains the preferred method of therapy, reducing the risk of adverse systemic reactions while providing high therapeutic concentrations in wound tissues. This article is an analysis of clinical studies of local …

Genome-based analysis of the taxonomic structure of the genus Stenotrophomonas

Objective. To analyze the current taxonomic structure of the genus Stenotrophomonas based on genomic data, taking into account limitations associated with nomenclatural validation processes. Materials and Methods. A reference dataset was constructed using taxonomic information from LPSN (List of Prokaryotic names with Standing in Nomenclature) and genome assemblies retrieved from the NCBI database. Pairwise average nucleotide identity (ANI) and average amino acid identity (AAI) values were calculated. Species delineation was performed using the commonly accepted threshold of ANI ≥ 95%.

Diagnosis and determination of resistance of non-tuberculous mycobacteria as a basis for clinical decision-making

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 …

Molecular and genetic features of pathogens in patients with unfavorable course of tuberculosis and HIV infection

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).

Impact of the COVID-19 pandemic on daily life and mental health in healthcare professionals

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.

Medical students’ perspectives on sepsis and antimicrobial resistance: findings from a multicenter cross-sectional survey

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.