Overview
- Laboratory tests confirmed norovirus overnight after the first illnesses were reported on Tuesday.
- At the primary school, 144 pupils and six teachers have tested positive for the virus.
- A nearby secondary school has 53 affected students linked to the outbreak.
- Classes continue with enhanced cleaning, and students may return only after 48 hours without symptoms.
- The source remains unknown, and officials view the school caterer as unlikely because other sites it serves have no similar cases.