{"title":"Current approaches and prospects for the development of laboratory diagnosis of measles","authors":"A.O. Nosova, E. V. Bogoslovskaya, G. Shipulin","doi":"10.36488/cmac.2023.1.4-12","DOIUrl":"https://doi.org/10.36488/cmac.2023.1.4-12","url":null,"abstract":"Measles virus causes an acute infectious disease with high contagiousness. It is possible to limit the spread of measles virus only with a sufficiently wide coverage of the population by vaccination. Despite the success of measles elimination programs, many countries have seen an increase in the incidence of measles in recent years, making early diagnosis increasingly important. The importance of laboratory diagnosis is related to the difficulties of clinical differential diagnosis of measles in the early stages of the disease. This review is devoted to an analysis of existing methods for diagnosing measles. It demonstrates the limitations of the most commonly used method, the enzyme immunoassay, and the need to develop and implement alternative diagnostic methods. Particular attention in the review is paid to molecular diagnostic methods, the sensitivity of which is reviewed for different types of biological sampled at different stages of the disease. Characteristics of the measles virus that are of key importance in the development of PCR tests are described. Studies evaluating the significance of introducing PCR in the routine diagnosis of measles are presented. The main advantages of molecular methods are the possibility of early detection of the virus and the possibility of simultaneous detection of several pathogens, which allows differential diagnosis of diseases with a similar clinical presentation. The development and implementation of rapid and accurate approaches based on molecular diagnostic methods into the health care system is an urgent need in the implementation of global and local programs for the elimination of measles.","PeriodicalId":53392,"journal":{"name":"Klinicheskaia mikrobiologiia i antimikrobnaia khimioterapiia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69624670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. A. Safonova, N. Dekhnich, N. D. Elistratov, E. D. Rzhevtseva, P.G. Filina, A. Kuzmenkov, I. V. Trushin, A. A. Punin
{"title":"COVID-19 risk factors for mortality in hospitalized patients: results\u0000of a retrospective study","authors":"K. A. Safonova, N. Dekhnich, N. D. Elistratov, E. D. Rzhevtseva, P.G. Filina, A. Kuzmenkov, I. V. Trushin, A. A. Punin","doi":"10.36488/cmac.2023.1.93-99","DOIUrl":"https://doi.org/10.36488/cmac.2023.1.93-99","url":null,"abstract":"Objective. To identify risk factors for fatal outcome and COVID-19-associated liver damage in hospitalized adult patients with coronavirus infection. Materials and Methods. In a retrospective cohort study, 389 cases of patients with coronavirus infection complicated by bilateral viral pneumonia were studied. Demographic characteristics, clinical features of the course of the disease, anamnestic data, results of laboratory and instrumental methods of examination were analyzed and correlated with mortality. At the time of admission, the following were taken into account: fever, severity of the patient’s condition according to COVID-19 classification of severity, body mass index (BMI), oxygen saturation (SpO2), percentage of lung tissue damage according to computed tomography (CT). Laboratory indices of biochemical blood analysis were assessed in dynamics: alanine aminotransferase (ALT), aspartate aminotransferase (AST), total bilirubin, total protein, albumin, C-reactive protein (CRP). Data analysis was performed using the R programming language (ver. 4.1.1.). Results. The following risk factors, assessed at the time of hospitalization, increased the likelihood of death: severe and extremely severe condition of the patient (RR = 4.77; 95% CI: 3.33–6.83); SpO2 less than 93% (RR = 3.76; 95% CI: 2.57–5.49); diabetes mellitus (RR = 2.94; 95% CI: 2.01–4.30); lung tissue damage CT-3 and CT-4 (RR = 2.66; 95% CI: 1.79–3.75); concomitant chronic pyelonephritis and chronic kidney disease (CKD) (RR = 2.59; 95% CI: 1.79–3.74); age 65 years and older (RR = 2.50; 95% CI: 1.70–3.67); ischemic heart disease (IHD) (RR = 2.39; 95% CI: 1.42–4.01); an increase in the level of CRP more than 15 mg/l (RR = 2.22; 95% CI: 1.16–4.24); BMI 35 kg/m2 or more (RR = 1.89; 95% CI: 1.28–2.77); AST level more than 2 upper limit of normal (ULN) (RR = 1.75; 95% CI: 1.20–2.55). Risk factors for an increase in AST more than 2 ULN were: SpO2 less than 93% (RR = 1.53; 95% CI: 1.15– 2.03), severe and extremely severe course of coronavirus infection (RR = 1.83; 95% CI: 1.38–2.43), concomitant chronic liver disease (RR = 1.45, 95% CI: 1.08–1.95). Conclusions. Risk factors for fatal COVID-19 in hospitalized patients are: severe and extremely severe initial condition of the patient, oxygen saturation less than 93%, lung tissue damage more than 50%, age older than 65 years, presence of concomitant diabetes mellitus, chronic pyelonephritis and CHD, CHD, obesity, increased CRP level more than 15 mg/l, and AST more than 70 units/l. Elevation of AST over 2 IU/L can be considered as one of the prognostic laboratory markers of adverse prognosis COVID-19.","PeriodicalId":53392,"journal":{"name":"Klinicheskaia mikrobiologiia i antimikrobnaia khimioterapiia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69624834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}