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The evolution of pneumococcal vaccine on children in Malaysia:the efficacy and outcome

Infectious Diseases Research 2021年第4期2卷 11-21页

作者： Semiat Opeyemi Yusuff Siti Norbaya Masri Nurul Diana Dzaraly niazlin mohd taib mohd Nasir mohd Desa Department of Medical Microbiology and Parasitology Faculty of Medicine and Health SciencesUniversiti Putra MalaysiaSelangor43400 UPMSerdangMalaysia Department of Biomedical Sciences Faculty of Medicine and Health SciencesUniversiti Putra Malaysia43400 UPMSerdangSelangorMalaysia

With pathogenic bacterium,numerous studies have been conducted in developing new vaccines,and available pneumococcal vaccines have been implemented for the prevention of related ***,Streptococcus pneumoniae is known to have developed resistance to many of the proposed preventive *** a result,contemporary research,including our study,has reviewed how Streptococcus pneumoniae has become resistant to vaccines and to further determine how to prevent the negative effect of the non-vaccine serotype on vaccine serotype *** have been known as one of the bacteria that has highest preventive strength of vaccination provided to humans,where children’s immunity requires the vital of it,based on immunization schedule to boost their immune system against the diseases of high mortality and *** pneumococcal vaccines are derived from its strains called serotypes,and further research is being conducted to determine more potent vaccines from other pneumococcal virulence *** impose and implement the pneumococcal vaccine,the serotype distribution needs to be *** deal with this verification,clinical or carriage samples are required for the determination and differentiation of vaccine serotypes from non-vaccine *** Malaysia,the carriage rates are often limited to the clinical epidemiology of Streptococcus *** samples are more needed in tracking the vaccine efficacy for pre-and post-immunization to prevent and reduce pneumococcal diseases before they manifest into clinical ***,in this review article,we explore the mentioned highlights for sufficient discussion,discovery,and knowledgeable implementation of pneumococcal vaccine.

关键词： Streptococcus pneumoniae Serotype Vaccine Children Carriage Malaysia

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Molecular epidemiology of piliated pneumococcal isolates at a major tertiary hospital in the Klang Valley,Malaysia

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Asian Pacific Journal of Tropical Medicine 2023年第2期16卷 80-88页

作者： Nurul Diana Dzaraly mohd Nasir mohd Desa AbdulRahman Muthanna Siti Norbaya Masri niazlin mohd taib Nurul Hana Zainal Baharin Nurshahira Sulaiman Nurul Asyikin Abdul Rahman Navindra Kumari Palanisamy Zarizal Suhaili Semiat Opeyemi Yusuff Nor Iza A.Rahman Tuan Suhaila Tuan Soh Fatimah Haslina Abdullah Department of Biomedical Sciences Faculty of Medicine and Health SciencesUniversiti Putra MalaysiaUPM SerdangSelangorMalaysia Department of Medical Microbiology Faculty of Medicine and Health SciencesUniversiti Putra MalaysiaUPM SerdangSelangorMalaysia School of Biology Faculty of Applied SciencesUniversiti Teknologi MARA Negeri SembilanKuala Pilah BranchKuala PilahNegeri SembilanMalaysia Department of Medical Microbiology and Parasitology Faculty of MedicineUniversiti Teknologi MARASungai Buloh CampusJalan HospitalSungai BulohSelangorMalaysia School of Animal Science Aquatic Science and EnvironmentFaculty of Bioresources and Food IndustryUniversiti Sultan Zainal AbidinBesut CampusBesutTerengganuMalaysia Faculty of Medicine Universiti Sultan Zainal AbidinJalan Sultan MahmudKuala TerengganuTerengganuMalaysia Department of Pathology Sungai Buloh HospitalJalan HospitalSungai BulohSelangorMalaysia Department of Pathology Sultanah Nur Zahirah HospitalJalan Sultan MahmudKuala TerengganuTerengganuMalaysia

Objective:To characterise a collection of pili-carrying and none pili-carrying pneumococcal isolates of clinical origin for serotypes,antibiotic resistance and ***:In total,42 clinical isolates were collected between October 2017 and December *** isolates were analysed for antimicrobial susceptibility,serotype distribution,detection of pneumococcal virulence and pilus *** sequence typing was performed only for piliated isolates,followed by phylogenetic ***:The common isolation sites among the pneumococcal isolates were tracheal aspirate(28.6%),blood(26.2%),and sputum(23.8%).Fifty percent isolates were resistant to erythromycin,tetracycline(50.0%)and trimethoprim-sulfamethoxazole(43.0%).The most frequent were serotypes 19F(28.6%),6A/B(23.8%)and 19A(14.3%).Piliated isolates were detected in a small proportion(33.3%);64.3%were ***320 was the prevalent sequence type among the piliated isolates and genetically related to the Pneumococcal Molecular Epidemiology Network clones Taiwan19F-14(CC271).In the phylogenetic analysis,some piliated isolates showed a close association having similar ST320,carrying serotype 19A and both pilus genes indicating their clonal ***:Pneumococcal lineages of piliated isolates have been globally disseminated and pili could have played a role in the spread of antibiotic resistant clones.

关键词： Pneumococci Pili Genotype Malaysia

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