Introduction: Pediatric lead exposure has long-term health, public health, and economic consequences; however, it is an underrecognized problem in low and middle-income countries. Our objective was to determine the prevalence of elevated blood lead levels (EBLLs) (greater than or equal to 5mg/dL) and evaluate risk factors for EBLLs in infants and children in two cities in Bhutan. Methods: A cross-sectional study of children 2 through 59 months old was conducted in Thimphu and Phuentsholing, Bhutan during 2018. Blood was obtained by finger-stick and tested using a LeadCare II analyzer (Meridian Bioscience). Data were double entered in EpiData 3.1 and validated. Excel, Prism8, and STATA/IC 15.1 were used for analysis. Results: Among 531 participants, the prevalence of EBLLs was 43.88%. The prevalence of EBLLs in girls and boys was 37.40% (n=262) and 50.19% (n=269), respectively (p= 0.004). The prevalence in Thimphu was 52.35% (n=361), compared to 25.88% (n=170) in Phuentsholing (p less than 0.001). In Thimphu, 70.47% (n=149) of 1 - 4 year old children tested in spring had EBLLs, compared to 51.45% (n=138) in autumn (p=0.001). Of the risk factors assessed, only regularly eating with fingers or hands was significantly associated with EBLLs (p < 0.001). Conclusions: Nearly half of participants in two cities in Bhutan had elevated blood lead levels. Seasonal exposure to lead appears to be present. The high prevalence in this study is alarming. Further studies are urgently needed to both characterize the sources of lead and validate these findings on a larger scale.

Introduction: There is no level of lead in one’s blood that is known to be safe. Infants and children are exposed to lead through various sources in the environment. Lead-based paint, toys, play equipment, dust, and soil may all be potential sources of lead. Preventing lead exposure is essential to eliminate the permanent and life-long disability caused from lead poisoning. Previous work showed that 44% of children aged 2 - 60 months in a Bhutanese population have dangerously high (greater or equal to 5mg/dL) levels of lead. The sources of this lead toxicity, however, are unknown. This study was carried out to identify potential sources of lead in infants’ and children’s environments at health facilities, early childhood care and development and creche centers, public playgrounds, and schools in Thimphu Dzongkhag. Methods: An environmental survey using a portable X-ray Fluorescence (pXRF) was conducted from May 2021 to April 2022 to identify potential sources of lead in the environment in and around Thimphu, Bhutan. Results: A total of 777 tests were done to identify excessive amounts of lead from various items, including: toys, playground equipment, furniture, paints, and soil. A total of 16 tests had excessive amounts of lead, of which 15 were detected from playground equipment at public playgrounds. The most common color with excessive lead was yellow. Conclusions: Excessive amounts of lead were found in playground equipment as a possible source of lead exposure in children.

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Introduction: Globally, 2.6 million neonates die every year, with more than one third of these deaths occurring within 24 hours of birth. Most neonatal deaths are preventable. The scaling up of Neonatal Intensive Care Unit services in developing countries have shown to improve survival rates. This study aimed to determine the mortality rate, and correlate the general and clinical characteristics with the outcomes of neonates admitted in the NICU at the Eastern Regional Referral Hospital, Mongar, Bhutanfrom the year 2015 to 2017. Methods: Demographic data, neonatal and maternal variables were extracted for all Neonatal Intensive Care Unit admissions from 2015 to 2017. Descriptive and analytical statistics were reported as frequencies, percentages, median, adjusted OR, 95% CI and p-values. Results: The mortality rate was 12.31%. Neonatal jaundice (49.55%), neonatal sepsis (41.74%), and prematurity (32.43%) were the three most common diagnoses. The mortality among neonates with low birth weight (<2500 grams) was 3.68 times (adjusted OR 3.68; 95% CI: 1.39-9.77) higher than the mortality among the normal birth weight neonates and mechanically ventilated neonates were 35.85 times (adjusted OR 35.85; 95% CI: 13.12-97.87) more at riskof dying than those without mechanical ventilation. The main causes of mortality were neonatal sepsis (34.15%), prematurity (29.27%) and birth asphyxia (21.95%). Conclusion: The mortality rate at the NICU, Eastern Regional Referral Hospital is 12.31%. The study recommends to establish intermediate phototherapy/Kangaroo Mother Care/special baby care unit in the hospital to improve the quality of new born care

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