Publications by authors named "M Chittaganpitch"

Article Synopsis
  • - The Thai Department of Medical Sciences initiated a national external quality assessment (EQA) program to evaluate COVID-19 testing accuracy across 197 laboratories using inactivated SARS-CoV-2 samples.
  • - Most laboratories (93%) reported accurate results, although some faced issues, with false negatives mostly linked to low viral loads and two key error causes identified: RNA contamination and poor-quality RNA extraction.
  • - This EQA approach could guide other countries in setting up their own programs for better laboratory accuracy, emphasizing that such national schemes can be more cost-effective and sustainable than commercial alternatives.
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Background: Pneumonia remains the leading cause of death among children <5 years of age beyond the neonatal period in Thailand. Using data from the Pneumonia Etiology Research for Child Health (PERCH) Study, we provide a detailed description of pneumonia cases and etiology in Thailand to inform local treatment and prevention strategies in this age group.

Methods: PERCH, a multi-country case-control study, evaluated the etiology of hospitalized cases of severe and very severe pneumonia among children 1-59 months of age.

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Background: Seasonal influenza vaccination uptake among young children in Thailand is low despite national recommendation for vaccination. We implemented a knowledge, attitude/perception, and practice survey to understand determinants of influenza vaccination in children aged six months to two years.

Methods: Using a cross-sectional design, we interviewed caregivers of 700 children in seven hospitals using a structured questionnaire to collect information on caregivers' and children's demographic characteristics, and caregivers' knowledge of influenza illness and national vaccine recommendation, attitude/perception toward influenza vaccine, and information sources.

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Background: We compared influenza antibody titers among vaccinated and unvaccinated pregnant and non-pregnant women.

Methods: During 1st June- 30th September 2018, four groups of cohort participants-vaccinated pregnant, unvaccinated pregnant, vaccinated non-pregnant, and unvaccinated non-pregnant women were selected by matching age, gestational age, and the week of vaccination. Serum antibody titers against each strain of 2018 Southern Hemisphere inactivated trivalent influenza vaccine (IIV3) were assessed by hemagglutination inhibition (HI) assay on Day 0 (pre-vaccination) and Day 28 (one month post-vaccination) serum samples.

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