Assessing the sensitivity and predictive value of wastewater in detection of Hepatitis A cases in San Diego County
Fig 2
Observed Wastewater Signal, Cases and their Shedding Period.
In the 308 days from September 10th 2023 to July 13th 2024 used in this analysis, there were 12 cases of HAV reported by San Diego County, represented above by points on their respective episode dates. In that same period, wastewater was sampled from the Point Loma Wastewater Treatment Facility a total of 131 times, with positive sample days being shaded orange and negative sample days in blue. A total of 48 samples tested positive for HAV nucleic acids. Each case had a 3-week long shedding period which intersected with the shedding periods of other cases, represented by the horizontal bars on each case.