Table 2.

Temporal association between outbreaks indicated in wastewater and reported outbreaks *, Oklahoma 2021–2022.

Pathogen	Number of Weeks with Outbreaks Reported	Number of Weeks Where Wastewater Concentrations Exceeded 95th Seasonal Threshold	Number of Weeks Where Exceeded Wastewater Thresholds Corresponded with Timing of Reported Outbreaks *	Number of Weeks Where Exceeded Wastewater Thresholds Corresponded with Timing of Outbreaks with Unknown Etiology * (N = 22)
Campylobacter	6	10	0	2
Salmonella	47	11	9	1
Norovirus	n.a	7	n.a	5
Total (%)	53	28	9 (32)	9 (41)

* Indicates whether the outbreak occurred no later than two weeks following the wastewater threshold being exceeded. n.a. not applicable.