Influenza surges in Nagano Prefecture with new variant Sub-clade K, prompting warnings about child safety

Influenza cases are surging in Nagano Prefecture, with a new variant, "Sub-clade K," potentially driving the spread. The number of patients has more than doubled in a week, exceeding the "alert" level. Experts urge thorough preventative measures and vaccination. Children are particularly affected, with reports of unusual behavior leading to accidents. Parents are advised to monitor children closely for two days after symptom onset.