highly significantp < 0.0001
Highly significant values ( p < 0.0001) are shown in red.
Highly significant values ( p < 0.0001) are shown in red.
It is uncertain in our study if this is the transmission pathway, particularly for Giardia which shows less seasonality in case notification rates ( Fig 1 ), but a substantial number of diarrheal cases around the world suggest that infections among humans has an increasing trend caused by waterborne transmission [e.g., 24 , 87 ].