This Viewpoint discusses updating the existing recommendation for an additional early MMR dose to infants aged 6 to 11 months traveling to any region with increased probability of measles exposure.

Hepatitis B virus (HBV) infection is a significant cause of morbidity and mortality globally. The World Health Organization estimates that just 10.5% of individuals living with HBV globally are aware of their status. Antenatal care provides an opportunity to screen pregnant women for HBV and to treat those who are eligible to reduce the risk of vertical transmission. We conducted an observational study to determine the proportion of pregnant women with active HBV infection delivering at a government-funded hospital in Kampala, Uganda, to estimate the number of missed opportunities to prevent vertical transmission.MethodsEligible participants were enrolled via the PROGRESS study, an observational cohort study undertaken in Kampala, Uganda, between November 2018 and April 2021. Results presented here describe data from April 2019 to November 2020. Five milliliters of venous blood was drawn shortly after delivery. Serum aliquots were analyzed for hepatitis B surface antigen (HBsAg). HBsAg-positive participants were informed of their result by telephone and referred to the gastroenterology service for specialist management.ResultsIn total, 6062 women were enrolled between April 2019 and November 2020. Results were available for 6012 (99.6%) participants, among whom 131 (2.2%) were HBsAg positive. Only 10 of 131 (7.6%) HBsAg-positive participants were successfully referred to the gastroenterology service at Mulago Hospital for treatment of their infection.ConclusionsOur study identified a number of missed opportunities to identify active HBV infection among our pregnant cohort. Additional resources are urgently required to increase the coverage of antenatal HBV screening while also improving treatment pathways for pregnant women with HBV infection in this region.

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