Rising Concern Over Antibiotic-Resistant Infections in Newborns, Researchers Warn

Recent research highlights a troubling surge in antibiotic-resistant infections among newborn babies across Southeast Asia. A comprehensive study led by the University of Sydney examined nearly 15,000 blood samples collected from ill infants in hospitals from Indonesia to the Philippines during 2019 and 2020. Findings reveal that the majority of infections are caused by bacteria unlikely to respond to current WHO-recommended therapies, which are primarily based on data from high-income countries, underscoring the need for localized treatment guidelines.

The study, published in The Lancet Regional Health—Western Pacific, emphasizes that gram-negative bacteria such as E. coli, Klebsiella, and Acinetobacter account for about 80% of neonatal bloodstream infections and are more prone to develop resistance. Alarmingly, these bacteria, traditionally associated with older children and adults, are now infecting very young infants, including those in their first days of life.

Experts warn that the reliance on delayed or false-negative lab tests complicates timely diagnosis and effective treatment. Consequently, healthcare providers often resort to educated guesses based on data from wealthier nations, which may not accurately reflect the regional bacterial landscape.

Associate Professor Phoebe Williams, a senior author, stresses the urgency of updating treatment guidelines to incorporate local bacterial profiles and resistance patterns. She warns that without such measures, neonatal mortality rates could escalate. Co-author Michelle Harrison highlights the critical lack of new antibiotics in development for neonatal use, noting that it typically takes about a decade for new drugs to reach approval for infants.

The research also sheds light on the rise of gram-negative bacteria like E. coli and Klebsiella as causative agents of neonatal infections in their earliest days, posing a significant challenge for treatment due to their high resistance potential. Furthermore, fungal infections, responsible for nearly 10% of serious neonatal cases, are also of concern, particularly given their higher incidence in Southeast Asian settings compared to high-income countries.

Overall, this study underscores the importance of region-specific data collection and surveillance to inform more effective, localized treatment strategies, aiming to reduce mortality and combat the escalating threat of antimicrobial resistance in neonates.

Source: https://medicalxpress.com/news/2025-09-alarming-newborn-babies-antibiotic-resistant.html