Influence of School Year on Seasonality of Norovirus Outbreaks in Developed Countries

Table 2

School year characteristics of outbreak set regions.

Location	Source	School year type; holidays > 1 week	School year
			Median start date (IQR)	Start month
Australia, South Australia	South Australia Department of Education and Child; Development (survey)	Y	Jan 29; (28-29)	February
Australia, Victoria	Victoria Department of; Education and Early Childhood Development (survey)	Y	Jan 29; (29-30)	February
Canada, Alberta	Alberta school authorities (survey)	T: CV, SuV	NA	September
England and Wales	Eurydice	T: CV, SV, SuV	Sep 4; (1–8)	September
Germany	Eurydice	U: AV, CV, SV, SuV	Aug 23; (16–25)	September
Hong Kong	Hong Kong Education Bureau (survey)	T: no data	NA	September
Hungary	Eurydice	T: CV, SuV	Sep 1; (Aug 31-Sep 1)	September
Japan	Embassy of Japan in Canada (survey)	T: CV, SV, SuV	NA	September
Netherlands	Eurydice	T: CV, SuV	Aug 23; (22–25) p; Aug 27; (26–29) s	September
New Zealand	New Zealand Ministry of Education website	Y	Feb 1; (Jan 29–Feb 7)	February
Norway	Eurydice	T: CV, SuV	Aug 19; (18-19)	September
Spain, Catalonia	Eurydice	T: CV, SuV	Sep 7; (7-7)	September
Spain, Catalonia and Valencia	Eurydice	T: CV, SuV	Sep 11; (9–15) p; Sep 15; (15–17) s	September
US	Google trends	T: no data	NA	September

School year type: Y: year round, T: traditional, U: unclear.
Holidays: AV: autumn, CV: Christmas/New Years, SV: spring, SuV: summer.
Age level: p: primary, s: secondary.
The start month of school is April in Japan; however September was used as this follows the longest school vacation.