HAV was detectable in wastewater of both municipalities and neighbourhoods within a low prevalence setting. Wastewater HAV was associated with population metrics and socioeconomic factors, including immigration. WBS data correlated strongly with clinical disease revealing a minimal burden of undiagnosed infections. This demonstrates the feasibility of HAV WBS and its potential as a public health tool in non-endemic settings.
Weyant et al. (Sun,) studied this question.