Sentence examples for proven negative from inspiring English sources

So far, 35 tests have proven negative.

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.

João Breda, from WHO's Regional Office for Europe, and colleaguesThe researchers wrote that caffeine has a proven negative effect on children.

Tests for radiation have (thankfully) proven negative, but to the apparent concern of US marine biologists, several non-native species of starfish and algae appear to have survived its 5,000-mile 5,000-mile

In Ireland, the Department of Health and Children recommends admission screening of patients at increased risk of meticillin-resistant Staphylococcus aureus (MRSA), isolation of these patients until proven negative, and eradication of any MRSA identified.

Many university weed scientists are speaking out against the dangerous notion that the best way to combat resistant weeds is to spray more herbicides on them - especially herbicides with a proven, negative environmental and human health track record.

All proved negative for anthrax.

This proved negative, but her anxiety increases.

X-rays proved negative, team officials said.

They had quickly suspected radiation poisoning but tests for conventional gamma radiation had proved negative.

A blood sample and biopsy taken from her two weeks ago both proved negative.