Sentence examples for proved negative for from inspiring English sources

All proved negative for anthrax.

When a biopsy on Murcer's brain in March proved negative for a recurrence of cancer, one of his survivor friends, Jay Larkin, uttered a verbal leap of joy, saying "Thank God" three times.

"X-rays showed no problems with my hips, and tests proved negative for gout, arthritis and even MS".

Sera that proved negative for anti-borrelial antibodies were combined to form the NHS pool.

All 18 pre-travel samples proved negative for bacterial pathogens.

Sputum and gastric fluid culture proved negative for mycobacteria three weeks later.

Do: Give urine, blood and hair samples that all prove negative for doping.

Two genetic tests have proven negative for SARS, but other kinds of tests have produced mixed results, including at least one positive result, Mr. Cordingley said.

Similarly, a history of aspiration pneumonia may prove negative for aspiration of oral secretions, but positive for aspiration of gastric secretions, and vice versa.

All cells were maintained at 37°C with 5% CO2 and were routinely tested and proven negative for mycoplasma contamination.

It is speculated that mutations within this region may account for the majority of FJHN cases that prove negative for UMOD, REN or HNF-1β mutations [ 11].