Back to Show
PBS News Hour
How scientists use wastewater to track the spread of COVID
As the newest dominant COVID subvariants BQ.1 and BQ.1.1 emerge, scientists are looking beyond traditional methods to track its spread. One important tool in their arsenal is wastewater surveillance. Special correspondent Cat Wise reports from California, one of the first states to test wastewater for COVID.
Support Provided By
57:46
November 27, 2025 - PBS News Hour full episode
57:46
November 26, 2025 - PBS News Hour full episode
57:46
November 25, 2025 - PBS News Hour full episode
57:46
November 24, 2025 - PBS News Hour full episode
26:45
November 23, 2025 - PBS News Weekend full episode
26:45
November 22, 2025 - PBS News Weekend full episode
57:46
November 21, 2025 - PBS News Hour full episode
57:46
November 20, 2025 - PBS News Hour full episode
57:46
November 19, 2025 - PBS News Hour full episode
57:46
November 18, 2025 - PBS News Hour full episode
57:46
November 17, 2025 - PBS News Hour full episode
26:31
November 16, 2025 - PBS News Weekend full episode