What is a sputum Gram’s stain? A sputum Gram’s stain is a laboratory test that allows your doctor to diagnose a bacterial infection in your respiratory tract. They may order it if you have symptoms of ...

Compared with other urine analysis methods, urine Gram stain has a moderate predictive value for detecting gram-negative bacteria in urine culture but does not significantly improve urinary tract ...

A team of researchers at the University of California, Los Angeles (UCLA) has introduced a virtual Gram staining technique that could transform how microbiologists stain and classify bacteria. This ...

Influential scientist Hans Christian Gram left a durable mark on microbiology thanks to the pioneering staining technique he invented – and he’s now being celebrated with a Google Doodle on the 166th ...