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IgG Antibody Responses Are Preferential Compared with IgM for Use as Serological Markers for Detecting Recent Exposure to Plasmodium vivax Infection

  • Rhea J. Longley
  • , Michael T. White
  • , Jessica Brewster
  • , Zoe S.J. Liu
  • , Caitlin Bourke
  • , Eizo Takashima
  • , Matthias Harbers
  • , Wai Hong Tham
  • , Julie Healer
  • , Chetan E. Chitnis
  • , Wuelton Monteiro
  • , Marcus Lacerda
  • , Jetsumon Sattabongkot
  • , Takafumi Tsuboi
  • , Ivo Mueller
  • Walter and Eliza Hall Institute of Medical Research
  • University of Melbourne
  • Institut Pasteur, Paris
  • Ehime University
  • RIKEN Center for Integrated Medical Sciences (IMS)
  • Fundação de Medicina Tropical Dr. Heitor Vieira Dourado
  • Universidade do Estado do Amazonas
  • Instituto Leônidas e Maria Deane (FIOCRUZ-Amazonas)

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

To achieve malaria elimination, new tools are required to explicitly target Plasmodium vivax. Recently, a novel panel of P. vivax proteins were identified and validated as serological markers for detecting recent exposure to P. vivax within the last 9 months. In order to improve the sensitivity and specificity of these markers, immunoglobulin M (IgM) in addition to immunoglobulin G (IgG) antibody responses were compared with a down-selected panel of 20 P. vivax proteins. IgM was tested using archival plasma samples from observational cohort studies conducted in malaria-endemic regions of Thailand and Brazil. IgM responses to these proteins generally had poorer classification performance than IgG.

Original languageEnglish
Article numberofab228
JournalOpen Forum Infectious Diseases
Volume8
Issue number6
DOIs
Publication statusPublished - 1 Jun 2021

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Keywords

  • IgG
  • IgM
  • Plasmodium vivax
  • antibody
  • malaria
  • serological exposure markers
  • serology
  • surveillance

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