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Mycoplasma genitaliuminfection in pregnancy is increasingly reported at similar frequencies to other sexually transmitted infections (STIs). Knowledge on its contribution to adverse pregnancy outcomes is very limited, especially relative to other STIs or bacterial vaginosis (BV). Whether M. genitaliuminfluences birthweight remains unanswered.

Undetected subclinical Plasmodiumspp. infections are a significant barrier to eliminating malaria. In malaria‐endemic areas, naturally acquired antimalarial antibodies develop with repeated infection. These antibodies can confer protection against the clinical manifestations of Plasmodiumspp. infection in highly exposed populations, and several distinct functional antibody mechanisms have been defined in the clearance of Plasmodiumparasites. However, the role of antimalarial antibodies during subclinical infection is less well defined. In this review, we examine the development and maintenance of antibody responses and the functional mechanisms associated with clinical protection, highlighted by epidemiological studies investigating the association between human immunity and detection of subclinical infection across various malaria transmission intensities. Understanding the development and role of the antimalarial antibody response during subclinical Plasmodiumspp. infection will be essential to furthering novel interventions including vaccines and immunological biomarkers that can be utilized for malaria surveillance and ultimately progress malaria elimination. This review examines the role of antibodies in sub‐clinical malaria, focusing on antibody development, and functional mechanisms, and epidemiological studies to inform malaria control interventions.

Pregnant women in resource-limited settings are highly susceptible to anemia and iron deficiency, but the etiology of postpartum anemia remains poorly defined. To inform the optimal timing for anemia interventions, changes in iron deficiency-attributable anemia through pregnancy and postpartum need to be understood. In 699 pregnant Papua New Guinean women attending their first antenatal care appointment and following up at birth and 6 and 12 months postpartum, we undertake logistic mixed-effects modeling to determine the effect of iron deficiency on anemia and population attributable fractions, calculated from odds ratios, to quantify the contribution of iron deficiency to anemia. Anemia is highly prevalent during pregnancy and 12 months postpartum, with iron deficiency increasing the odds of anemia during pregnancy and, to a lesser extent, postpartum. Iron deficiency accounts for ≥72% of anemia during pregnancy and 20%–37% postpartum. Early iron supplementation during and between pregnancies could break the cycle of chronic anemia in women of reproductive age.