Study of Pneumococcal Bacteria Carriage, Types, and Antibiotic Resistance in Malaysian Children Under 5 Years

What this Trial Is About

This observational study focuses on determining how common nasopharyngeal carriage of Streptococcus pneumoniae is among Malaysian children aged 5 years and under. It aims to identify the types of pneumococcal bacteria present, their resistance to antibiotics, and how these factors relate to vaccination status and social factors. The study addresses a key health concern since pneumococcal carriage can lead to serious infections like pneumonia, which is a leading cause of death in young children in Malaysia. Participants include healthy and mildly symptomatic children from urban and semi-urban areas in Kuala Lumpur, Selangor, and Negeri Sembilan. Each child undergoes a single nasopharyngeal swab to detect the presence of pneumococcal bacteria. Researchers collect vaccination and demographic data through standardized forms with parental consent. Samples are analyzed using bacterial culture, antimicrobial susceptibility testing, and advanced whole-genome sequencing to identify bacterial types and resistance patterns. During the study, children are seen once for sample collection and data recording. The researchers measure the prevalence of pneumococcal carriage and analyze the genomic profiles of the bacteria over an 18-month period. This comprehensive approach helps understand how vaccination programs are influencing bacterial types and resistance in the community. The studys findings will support public health decisions on pneumococcal vaccination strategies in Malaysia.

Pneumococcal Carriage, Serotypes, and Antibiotic Resistance in Malaysian Children: A Multi-Centre Study