This Week in Pediatrics
Measles Cases and Outbreaks | Measles (Rubeola) | CDC
There have been 32 new outbreaks** reported in 2026, and 93% of confirmed cases (2,082 of 2,231) are outbreak-associated (717 from outbreaks starting in 2026 and 1,365 from outbreaks that started in 2025).
10 CMS and FDA Actions Affecting Care in 2026 | Conexiant
Over-the-Counter Continuous Glucose Monitor Cleared for Pediatric Use — On June 12, 2026, the FDA cleared Dexcom’s Stelo Glucose Biosensor System for over-the-counter use by people aged 2 years and older who do not use insulin.
Influenza Vaccine Effectiveness Against Pediatric Death in the United States: 2016–2025 | Pediatrics | American Academy of Pediatrics
Pediatrics 2026; e2026076453. 10.1542/peds.2026-076453 ... Seasonal influenza vaccination has been shown to reduce the risk of influenza and severe complications among children aged 6 months and older.
Research of the Day
Delayed Epinephrine Administration in Pediatric Anaphylaxis: Multi-Center Analysis
This multi-center retrospective study analyzed 2,800 pediatric anaphylaxis cases across 12 children's hospitals. Delayed epinephrine administration (>15 minutes from symptom onset) occurred in 42% of cases and was associated with increased risk of severe outcomes and biphasic reactions.
Key findings: (1) Delayed epinephrine associated with 3.2x increased odds of hospitalization; (2) Food-induced reactions most likely to have delayed treatment; (3) Many families cited fear of injection or uncertainty about symptoms as reasons for delay.
Reinforce epinephrine-first messaging for anaphylaxis. Ensure families can recognize symptoms and use auto-injectors confidently. Consider demonstration at every visit for patients with prescribed epinephrine.
Popular Beliefs
Organic food is significantly more nutritious
What the evidence shows: Organic foods have lower pesticide residues, but studies show minimal nutritional differences compared to conventional foods. What matters most for health is eating a variety of fruits and vegetables, whether organic or conventional.
Warm milk helps children sleep
What the evidence shows: While milk contains tryptophan (a sleep-promoting amino acid), the amount is modest. Any sleep benefit likely comes from the comforting ritual and warmth rather than pharmacologic effect. A consistent bedtime routine matters more than any single component.
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.
Behaviors
Musical Training and Brain Development in Children: Longitudinal Neuroimaging Study
This 3-year study compared brain development in children receiving musical instrument training versus those doing sports or no organized activity. Music training was associated with enhanced auditory processing, motor coordination, and executive function networks.
Key findings: (1) Increased cortical thickness in auditory and motor regions; (2) Better performance on working memory and attention tasks; (3) Benefits correlated with practice duration.
Music education offers cognitive benefits beyond artistic development. When families ask about extracurriculars, mention music as a brain-healthy option. Benefits appear even with modest practice time.
Genetics
Gene Therapy for Phenylketonuria: Phase 2 Trial Results
Phase 2 trial results of a novel gene therapy for PKU show sustained reduction in phenylalanine levels, potentially eliminating the need for restrictive diet in some patients. Single-dose treatment showed effects lasting 2+ years in most participants.
Key findings: (1) 70% of participants achieved normal Phe levels without diet; (2) No serious adverse events; (3) Quality of life significantly improved with dietary liberalization.
Gene therapy is expanding beyond rare diseases to common metabolic conditions. For PKU families, inform them of emerging options while continuing to support dietary adherence.