Wastewater Monitoring Sounds The Alarm On New COVID Variant
A newly emerging COVID-19 strain, nicknamed the “Cicada” variant, is raising concern among public health experts. But it’s not just hospitals or test results driving early detection this time. Instead, the first warning signs are flowing through America’s wastewater systems.
The variant has already been detected across dozens of countries and in at least 25 U.S. states. Many of these detections came from sewage samples collected through nationwide monitoring networks.
Wastewater surveillance was once a niche tool, but became a frontline defense in tracking COVID-19’s evolution.
That early detection is proving critical with the Cicada variant. Despite currently accounting for a small fraction of cases, it has already appeared in more than 100 wastewater monitoring sites nationwide, signaling broader spread than clinical testing alone suggests.
For wastewater professionals, the implications are significant. Treatment plants and monitoring networks are no longer just infrastructure — they could be epidemiological observatories.
The rise of the Cicada variant underscores a new reality: the future of pandemic surveillance may depend less on doctor’s offices, and more on what’s detected in our wastewater.