H2O: Just Add Water Season 1 Episode 17

() A series the Bad weather: the Sudden thunder-storm compels girls to pretend to be patients not to go to school, but they too convincingly feign symptoms and draw attention of doctors which are torn to study them «rare tropical illness». As the number of people in quarantine increases, Kim starts to suspect a deceit, but new threat is found out, when there arrives group to bring girls to hospital for studying.