H5N1 Bird Flu Detected in Texas Dairy Herd Amid Uncertain Source of California Child's Illness
H5N1 avian flu has been detected in a Texas dairy herd for the first time since May, raising the total to 1,079 infected herds across 17 states, while a California child's illness remains unexplained, with no evidence of human-to-human transmission or poultry exposure, suggesting environmental sources and ongoing cross-species transmission.