GENETIC SURVEY OF INVASIVE S. PNEUMONIAE SEROTYPES IN BULGARIA FOR A 5-YEAR PERIOD

Streptococcus pneumoniae colonises the mucosal lining of the upper respiratory tract and is an important cause of invasive infections affecting young children, adults over 65 years of age, the immunocompromised and individuals with chronic diseases. Recent studies have shown variations in virulence...

Бүрэн тодорхойлолт

Номзүйн дэлгэрэнгүй
Үндсэн зохиолчид: Ivan Simeonovski, Viktoriya Levterova, Mariya Malcheva, Todor Kantardjiev
Формат: Өгүүллэг
Хэл сонгох:English
Хэвлэсэн: National Center of Infectious and Parasitic Diseases 2018-12-01
Цуврал:Problems of Infectious and Parasitic Diseases
Нөхцлүүд:
Онлайн хандалт:https://pipd.ncipd.org/index.php/pipd/article/view/17
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author Ivan Simeonovski
Viktoriya Levterova
Mariya Malcheva
Todor Kantardjiev
author_facet Ivan Simeonovski
Viktoriya Levterova
Mariya Malcheva
Todor Kantardjiev
author_sort Ivan Simeonovski
collection DOAJ
description Streptococcus pneumoniae colonises the mucosal lining of the upper respiratory tract and is an important cause of invasive infections affecting young children, adults over 65 years of age, the immunocompromised and individuals with chronic diseases. Recent studies have shown variations in virulence based on the high rate of pneumococcal recombination. PCR-based molecular methods are highly sensitive, specific and are becoming the preferred tool for quick and accurate diagnosis of bacterial meningitis which is required to be defined within 2-3 hours. During the 5-year survey period (2013-2017), 202 materials received as cerebrospinal fluid samples and pneumococcal strains isolated from patients diagnosed with meningitis, were examined by Real-time PCR in the reference laboratory at NCIPD. Serotyping of S. pneumoniae-positive materials was performed with conventional multiplex PCR and Real-time PCR with primers for 41serotypes/serogroups. There is a high incidence of S. pneumoniae serotypes not covered by the pneumococcal conjugate vaccine (PCV10) currently used in Bulgaria. It was found that all cases of meningitis caused by S. pneumoniae vaccine serotypes occurred in patients that were not vaccinated.
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spelling doaj.art-dae2e86a6f95464b8f67f9dd2889373f2023-05-16T09:17:25ZengNational Center of Infectious and Parasitic DiseasesProblems of Infectious and Parasitic Diseases0204-91552815-28082018-12-0146210.58395/pipd.v46i2.17GENETIC SURVEY OF INVASIVE S. PNEUMONIAE SEROTYPES IN BULGARIA FOR A 5-YEAR PERIODIvan Simeonovski0Viktoriya Levterova1Mariya Malcheva2Todor Kantardjiev3National Centre of Infectious and Parasitic DiseasesNational Centre of Infectious and Parasitic DiseasesNational Centre of Infectious and Parasitic DiseasesNational Centre of Infectious and Parasitic Diseases Streptococcus pneumoniae colonises the mucosal lining of the upper respiratory tract and is an important cause of invasive infections affecting young children, adults over 65 years of age, the immunocompromised and individuals with chronic diseases. Recent studies have shown variations in virulence based on the high rate of pneumococcal recombination. PCR-based molecular methods are highly sensitive, specific and are becoming the preferred tool for quick and accurate diagnosis of bacterial meningitis which is required to be defined within 2-3 hours. During the 5-year survey period (2013-2017), 202 materials received as cerebrospinal fluid samples and pneumococcal strains isolated from patients diagnosed with meningitis, were examined by Real-time PCR in the reference laboratory at NCIPD. Serotyping of S. pneumoniae-positive materials was performed with conventional multiplex PCR and Real-time PCR with primers for 41serotypes/serogroups. There is a high incidence of S. pneumoniae serotypes not covered by the pneumococcal conjugate vaccine (PCV10) currently used in Bulgaria. It was found that all cases of meningitis caused by S. pneumoniae vaccine serotypes occurred in patients that were not vaccinated. https://pipd.ncipd.org/index.php/pipd/article/view/17serotypinginvasive S. pneumoniaePCR
spellingShingle Ivan Simeonovski
Viktoriya Levterova
Mariya Malcheva
Todor Kantardjiev
GENETIC SURVEY OF INVASIVE S. PNEUMONIAE SEROTYPES IN BULGARIA FOR A 5-YEAR PERIOD
Problems of Infectious and Parasitic Diseases
serotyping
invasive S. pneumoniae
PCR
title GENETIC SURVEY OF INVASIVE S. PNEUMONIAE SEROTYPES IN BULGARIA FOR A 5-YEAR PERIOD
title_full GENETIC SURVEY OF INVASIVE S. PNEUMONIAE SEROTYPES IN BULGARIA FOR A 5-YEAR PERIOD
title_fullStr GENETIC SURVEY OF INVASIVE S. PNEUMONIAE SEROTYPES IN BULGARIA FOR A 5-YEAR PERIOD
title_full_unstemmed GENETIC SURVEY OF INVASIVE S. PNEUMONIAE SEROTYPES IN BULGARIA FOR A 5-YEAR PERIOD
title_short GENETIC SURVEY OF INVASIVE S. PNEUMONIAE SEROTYPES IN BULGARIA FOR A 5-YEAR PERIOD
title_sort genetic survey of invasive s pneumoniae serotypes in bulgaria for a 5 year period
topic serotyping
invasive S. pneumoniae
PCR
url https://pipd.ncipd.org/index.php/pipd/article/view/17
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AT viktoriyalevterova geneticsurveyofinvasivespneumoniaeserotypesinbulgariafora5yearperiod
AT mariyamalcheva geneticsurveyofinvasivespneumoniaeserotypesinbulgariafora5yearperiod
AT todorkantardjiev geneticsurveyofinvasivespneumoniaeserotypesinbulgariafora5yearperiod