This Week in Pediatrics
AAP News | American Academy of Pediatrics
The 2026 AAP National Conference & Exhibition took place Oct. 2-6 in San Diego. Mark Del Monte: AAP continues to stand by values to protect children’s health and support the pediatric workforce AAP CEO/Executive Vice President Mark Del Monte, J.D., said the Academy remains st...
Measles Cases and Outbreaks | Measles (Rubeola) | CDC
However, vaccination coverage among U.S. kindergartners has decreased from 95.2% during the 2019–2020 school year to 92.4% in the 2025–2026 school year, leaving approximately 280,000 kindergartners at risk during the 2025–2026 school year.
Information for Pediatric Healthcare Providers | Covid | CDC
Oct. 8, 2026 · This content provides clinicians and public health professionals with key information and evidence for clinical considerations when diagnosing and managing pediatric patients infected with SARS-CoV-2, the virus that causes COVID-19.
Research of the Day
Early Antibiotic Exposure and Neurodevelopmental Outcomes: A Population-Based Cohort Study
This large population-based cohort study examined over 1.2 million children to investigate the association between antibiotic exposure in the first year of life and subsequent neurodevelopmental outcomes. The researchers found a modest but statistically significant association between early broad-spectrum antibiotic use and increased risk of ADHD and autism spectrum disorder diagnoses, though the absolute risk increase remained small.
Key findings include: (1) Children exposed to antibiotics in the first year had a 12% increased relative risk of ADHD diagnosis; (2) The association was stronger with repeated courses of broad-spectrum antibiotics; (3) The effect persisted after adjusting for maternal infections and other confounders.
While the study shows an association, causation is not established. The findings support judicious antibiotic use in infants—prescribing when clinically indicated, but avoiding unnecessary courses.
Popular Beliefs
Too many vaccines overwhelm a child's immune system
What the evidence shows: Children's immune systems handle vastly more antigens daily from the environment than from vaccines. Today's vaccines contain far fewer antigens than older versions despite protecting against more diseases. Studies show no increased infection rates in vaccinated children—vaccines strengthen, not weaken, immunity.
Cracking knuckles causes arthritis
What the evidence shows: Studies comparing habitual knuckle-crackers to non-crackers found no increased arthritis risk. The cracking sound is from gas bubble release in synovial fluid. The main consequence may be reduced grip strength and annoyed family members.
Reading to babies is pointless—they don't understand
What the evidence shows: Research consistently demonstrates that reading to infants from birth supports language development, vocabulary acquisition, and later literacy skills. Even before understanding words, babies benefit from hearing language patterns, rhythm, and the bonding experience. The AAP recommends reading aloud beginning in infancy.
Behaviors
Green Space Exposure and Mental Health in Urban Adolescents
This longitudinal study followed 5,000 urban adolescents over 4 years, using GPS tracking to measure green space exposure. Greater exposure to parks and nature was associated with lower rates of depression and anxiety, independent of socioeconomic factors.
Key findings: (1) 20% lower depression risk with daily green space exposure; (2) Benefits dose-dependent—more exposure meant better outcomes; (3) Active use (sports, walking) showed greater benefits than passive exposure.
Encourage outdoor time as part of mental health promotion. For families in urban areas, identify nearby parks and green spaces. Nature exposure is an accessible, cost-effective mental health intervention.
Genetics
Polygenic Risk Scores and ADHD: Clinical Utility Analysis
Large GWAS analysis demonstrates polygenic risk scores for ADHD have limited current clinical utility for diagnosis but may help identify children at risk for severe or persistent symptoms. Environmental factors remain critically important.
Key findings: (1) Polygenic scores explain ~10% of ADHD variance; (2) Higher scores associated with earlier onset and persistence; (3) Not useful as diagnostic test—clinical evaluation remains gold standard.
Genetics is one piece of the ADHD puzzle but doesn't replace clinical assessment. Avoid overinterpreting direct-to-consumer genetic tests. Family history remains the most useful genetic 'test' for ADHD risk.