This Week in Pediatrics
Cyclosporiasis in 2026: A clinical update for pediatricians | Contemporary Pediatrics
An active, multistate cyclosporiasis ... data, the agency received reports of 1,645 domestically acquired cyclosporiasis cases among people with illness onset from May 1 through July 13, 2026....
St. Luke's expands suburban Philadelphia footprint with Pennridge Pediatrics deal - Philadelphia Business Journal
St. Luke's expands its Philadelphia-area footprint by acquiring Pennridge Pediatrics, which operates two offices and employs four physicians and three nurse practitioners.
Paxlovid safe for children age 6 and up, new data reveal | CIDRAP
A study finds that the antiviral drug is safe to prescribe in children with COVID-19 who are at least 6 years old.
Research of the Day
Social Media Use and Depression in Early Adolescence: Longitudinal Analysis
This 3-year longitudinal study followed 6,500 adolescents ages 12-15, tracking social media use patterns and mental health outcomes. High social media use (>3 hours/day) was associated with increased depression risk, though the relationship was bidirectional.
Key findings: (1) 35% increased odds of elevated depressive symptoms with high use; (2) Social comparison and cyberbullying mediated the relationship; (3) Active use (creating content) showed smaller associations than passive consumption.
Screen for problematic social media use during well visits. Counsel families on media limits, encourage active over passive use, and discuss warning signs of cyberbullying and unhealthy comparison.
Popular Beliefs
Vaccines cause autism
What the evidence shows: This thoroughly debunked claim originated from a fraudulent 1998 study. Multiple large-scale studies involving millions of children have found no association between vaccines and autism. The original study was retracted and its author lost his medical license. Vaccines are safe and essential.
Cold weather causes colds
What the evidence shows: Colds are caused by viruses, not cold temperatures. The association exists because people spend more time indoors in close proximity during winter, facilitating viral transmission. Additionally, dry indoor air may impair mucosal barriers. Hand hygiene and avoiding sick contacts are the real prevention strategies.
Green mucus means bacterial infection requiring antibiotics
What the evidence shows: Mucus color changes naturally during viral infections and does not reliably distinguish viral from bacterial causes. Green/yellow mucus indicates immune cell activity, which occurs in both viral and bacterial infections. Antibiotics should be prescribed based on clinical criteria, not mucus color.
Behaviors
Early Pet Exposure and Immune Development: Birth Cohort Study
This birth cohort followed 1,200 children from birth to age 5, comparing immune development and allergy rates in homes with and without pets. Early pet exposure was associated with reduced allergy risk and altered gut microbiome.
Key findings: (1) 30% lower allergic sensitization with dog exposure in first year; (2) Cat exposure showed similar but smaller effects; (3) Microbiome diversity increased in pet-exposed children.
Reassure families that pet exposure during infancy may actually protect against allergies. For families without pets, don't specifically recommend getting one, but dispel the myth that pets must be removed to prevent allergies.
Genetics
CFTR Modulator Therapy in Young Children: Expansion to Additional Mutations
New clinical trial data supports expanding CFTR modulator therapy to children as young as 1 year with various CFTR mutations. Early treatment initiation shows benefits in lung function preservation and nutritional status, with excellent safety profile.
Key findings: (1) 85% of CF patients now eligible for modulator therapy; (2) Early treatment prevents rather than reverses lung damage; (3) Growth parameters improved in treated toddlers.
Refer CF patients promptly for genetic classification and modulator eligibility assessment. The treatment landscape has transformed—many children can now expect near-normal life expectancy with appropriate therapy.