Fibroblasts in aging lungs activate NF-κB to recruit destructive immune cell clusters. Young mice with this signal developed severe COVID-like illness. Human ARDS patients showed matching GZMK cell patterns.
BA.3.2, nicknamed Cicada, infects children ages 3 to 15 about five times more efficiently than other variants, per NYC wastewater and case data. Current vaccines still offer protection; no rise in hospitalizations observed. Limited sequencing hampers full spread assessment.
The 'cicada' variant slipped into 132 U.S. wastewater samples without triggering CDC alarms. Lab studies suggest it dodges 2025-2026 vaccine antibodies, yet hospitalizations remain flat and WHO calls the risk 'low.' For now, it's a shadow worth watching—not a surge worth fearing.
