VAR2CSA Serology to Detect Plasmodium falciparum Transmission Patterns in Pregnancy

Details

• Alternative Title:
  Emerg Infect Dis
• Personal Author:
  Fonseca, Ana Maria ; González, Raquel ; Bardají, Azucena ; Jairoce, Chenjerai ; Rupérez, Maria ; Jiménez, Alfons ; Quintó, Llorenç ; Cisteró, Pau ; Vala, Anifa ; Sacoor, Charfudin ; Gupta, Himanshu ; Hegewisch-Taylor, Jennifer ; Brew, Joe ; Ndam, Nicaise Tuikue ; Kariuki, Simon ; López, Marta ; Dobaño, Carlota ; Chitnis, Chetan E. ; Ouma, Peter ; Ramharter, Michael ; Abdulla, Salim ; Aponte, John J. ; Massougbodji, Achille ; Briand, Valerie ; Mombo-Ngoma, Ghyslain ; Desai, Meghna ; Cot, Michel ; Nhacolo, Arsenio ; Sevene, Esperança ; Macete, Eusebio ; Menéndez, Clara ; Mayor, Alfredo
• Description:
  Pregnant women constitute a promising sentinel group for continuous monitoring of malaria transmission. To identify antibody signatures of recent Plasmodium falciparum exposure during pregnancy, we dissected IgG responses against VAR2CSA, the parasite antigen that mediates placental sequestration. We used a multiplex peptide-based suspension array in 2,354 samples from pregnant women from Mozambique, Benin, Kenya, Gabon, Tanzania, and Spain. Two VAR2CSA peptides of limited polymorphism were immunogenic and targeted by IgG responses readily boosted during infection and with estimated half-lives of <2 years. Seroprevalence against these peptides reflected declines and rebounds of transmission in southern Mozambique during 2004-2012, reduced exposure associated with use of preventive measures during pregnancy, and local clusters of transmission that were missed by detection of P. falciparum infections. These data suggest that VAR2CSA serology can provide a useful adjunct for the fine-scale estimation of the malaria burden among pregnant women over time and space.
• Subjects:
  Adult Antibodies, Protozoan / Immunology Antigens, Protozoan Female Humans Immunoglobulin G Malaria, Falciparum Plasmodium Falciparum Pregnancy Pregnancy Complications, Parasitic Research Serologic Tests Young Adult

  More +
• Source:
  Emerg Infect Dis. 25(10):1851-1860
• Pubmed ID:
  31538557
• Pubmed Central ID:
  PMC6759269
• Document Type:
  Journal Article
• Place as Subject:
  Benin ; Gabon ; Mozambique ; Kenya ; Tanzania ; Spain
• Location:
  Africa ; Europe
• Volume:
  25
• Issue:
  10
• Collection(s):
  Emerging Infectious Diseases
• Main Document Checksum:
  urn:sha256:0c2201c49c3a05c1d17882538944bc01ec1e36daa7e04cf27f22624ae5614c04
• Download URL:
  https://stacks.cdc.gov/view/cdc/82934/cdc_82934_DS1.pdf
• File Type:
  [PDF - 7.09 MB ]