STREPTOCOCCUS PNEUMONIAE SEROTYPE DISTRIBUTION AFTER THE INTRODUCTION OF PNEUMOCOCCAL CONJUGATE VACCINES
REVIEW
DOI:
https://doi.org/10.58395/pipd.v47i1.10Keywords:
Streptococcus pneumoniae, pneumococcal serotypes, PCVsAbstract
Streptococcus pneumoniae serotypes are changing due to the widely introduced pneumococcal conjugate vaccines. Surveillance studies have proven valuable in monitoring these vaccine effects. S. pneumoniae is highly adaptable to its human reservoir and colonises mucosal surfaces of upper airways mainly in children. Carriage decreases during the first 2 years of life because of the development of naturally acquired adaptive immune memory. Most of the serotypes do not cause serious illnesses but few of them are responsible for severe pneumococcal infections. Ten of the most common serotypes are estimated to cause over 60% of invasive diseases worldwide. The virulence factor of S. pneumoniae is the polysaccharide capsule as non-encapsulated strains are absent among the strains causing invasive pneumococcal disease. Prevalence of serotypes differs depending on the age group and geographic area of patients. Differences in PCV implementation lead to changes in serotype distribution and to significant reduction of disease caused by vaccine types.
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References
The Evidence Base for Pneumococcal Conjugate Vaccines (PCVs): Data for decision-making around PCV use in childhood. Johns Hopkins Bloomberg School of Public Health, January 2017. Available from: https://www.jhsph.edu/ivac/wp-content/uploads/2018/05/PCVEvidenceBase-Jan2017.pdf
Ndlangisa K, du Plessis M, Allam M, Wolter N, de Gouveia L, Klugman KP, Cohen C, Gladstone RA, von Gottberg A. Invasive disease caused simultaneously by dual serotypes of Streptococcus pneumoniae. J Clin Microbiol. 2018; 56:e01149-17.
Weiser J, Ferreira D, Paton J. Streptococcus pneumoniae: transmission, colonization and invasion. Nat Rev Microbiol.2018; 16:355–367.
CDC - Immunology and Vaccine-Preventable Diseases – Pink Book – Pneumococcal Disease. Available from: https://www.cdc.gov/vaccines/pubs/pinkbook/pneumo.html
Simell B, Auranen K, Käyhty H, Goldblatt D, Dagan R, L O’Brien K. The fundamental link between pneumococcal carriage and disease. Expert Rev Vaccines. 2012; 11(7):841-855.
WHO vaccine-preventable diseases: monitoring system. 2018 global summary. Last update:15-Jul-2-18Availablefrom: http://apps.who.int/immunization_monitoring/globalsummary/timeseries/tswucoveragedtp3.html
Ortigoza MB, Blaser SB, Zafar MA, Hammond AJ, Weiser JN. An Infant Mouse Model of Influenza Virus Transmission Demonstrates the Role of Virus-Specific Shedding, Humoral Immunity, and Sialidase Expression by Colonizing Streptococcus pneumoniae. mBio. 2018; 9(6):e02359-18.
Zafar A, Wang Y, Hamaguchi S, Weiser JN. Host-to-Host Transmission of Streptococcus pneumoniae Is Driven by Its Inflammatory Toxin, Pneumolysin. Cell Host Microbe. 2017; 21(1):73-83.
Pennington SH, Pojar S, Mitsi E, Gritzfeld JF, Nikolaou E, Solórzano C et al. Memory B Cells Predict Protection against Experimental Human pneumococcal Carriage. Am J Respir Crit Care Med. 2016; 194(12):1523-1531.
Biesbroek G, Tsivtsivadze E, Sanders E, et al. Early respiratory microbiota composition determines bacterial succession patterns and respiratory health in children. Am J Respir Crit Care Med. 2014; 190(11):1283-1292.
World Health Organization - Pneumococcal conjugate vaccines in infants and children under 5 years of age: WHO position paper. February 2019. Weekly Epidemiological Record Available from: http://www.who.int/iris/handle/10665/310970
Messaoudi M, Milenkov M, Albrich WC, van der Linden MP, Benet T, Chou M, et al. The relevance of a novel quantitative assay to detect up to 40 major Streptococcus pneumoniae serotypes directly in clinical nasopharyngeal and blood specimens. PLoS One. 2016; 11(3):e0151428.
Richter SS, Musher DM. The ongoing genetic adaptation of Streptococcus pneumoniae. J Clin Microbiol. 2017; 55:681-685.
Simeonovski I, Levterova V, Malcheva M, Kantardjiev T. Genetic survey of invasive S. pneumoniae serotypes in Bulgaria for a 5-year period. Probl Infect Parasit Dis. 2018; 46(2):5-9.
Kalchev Y, Kirina V, Mircheva M, Tsolova M, Setchanova L, Levterova V, Simeonovski I, Stoycheva M, Kantardjiev T, Murdjeva M. Etiology and epidemiology of non-viral meningitis in the Plovdiv region. General Medicine. 2018; 20(2):9-15.
