Acquisition of antibodies that block <i>Plasmodium falciparum</i> adhesion to placental receptor chondroitin sulfate A with increasing gravidity in Malian women.

"Conflict of interest The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. The handling editor declared a past co-authorship with the authors."

"The author(s) declare financial support was received for the research, authorship, and/or publication of this article. This work was supported by the Intramural Research Program of the National Institute of Allergy and Infectious Diseases, National Institutes of Health."

"Pregnant women in this study were enrolled into a longitudinal cohort study of mother-infant pairs as well as a cross-sectional study in Ouélessébougou, Mali. Written informed consent was obtained from study participants or parents/guardians of pregnant adolescents after receiving written and oral explanation from a study clinician in their native language. Study protocols and procedures were approved by the Institutional Review Boards at the National Institute of Allergy and Infectious Diseases, National Institutes of Health, and by the Ethics Committee of the Faculty of Medicine, Pharmacy and Dentistry, University of Bamako, Bamako, Mali. The protocols are registered at Clinicaltrials.gov under identifiers NCT01168271 and NCT02471378."