Table 4.

Worldwide detection of AiV in river, surface and ground waters.

Countrya	Positive Samples	Sample type	Genotype	Copies/L	References
US	1/2	Reclaimed water	NSb	NS	Rosario et al. (2009)
	7/12	Ground waterb	NS	1.0 × 102–1.5 × 104	Betancourt et al. (2014)
Venezuela	5/11	River water	B	NS	Alcalá et al. (2010)
Iran	15/28	River water	NS	3.4 × 102–5.9 × 106	Azhdar et al. (2019)
Japan	36/60	River water	A + B	NS	Kitajima et al. (2011)
	29/29	River water	NS	8.6 × 102–2.0 × 104	Hata et al. (2014)
	20/52	Surface water	NS	Up to 104	Hata et al. (2018)
Nepal	14/14	River water	B	1.2 × 106–8.3 × 108	Haramoto and Kitajima (2017)
	11/37	Ground water	B	5.6 × 104–2.0 × 106
	1/1	Tap water	B	109
France	20/175	River water	NS	Up to 102	Prevost et al. (2015)
Netherlands	12/14	River water	A + B	NS	Lodder et al. (2013)

^aCountries were ordered by continent and alphabetically within each continent.

^bNS, not specified.