A state forensics laboratory in a Bay Area county alerted prosecutors that urine tests conducted between 2016 and 2025 may have resulted in inaccurate alcohol readings.

COVID-19’s danger lay in its invisibility. The SARS-CoV-2 virus is highly contagious and can be passed on by people with light or no symptoms, making it extremely difficult to track and contain. But ...

Robots and sensors can spot mastitis before symptoms appear, but keeping cows healthy still comes down to careful management.