Sentence examples for testing negative from inspiring English sources

In addition, a random selection of samples testing negative in all test systems was re-tested by Western blot (100 samples) and by virus isolation (81 samples).

To everyone's surprise, I ended up testing negative.

Another addict started testing negative for drugs when his employer started drug screening.

Testing negative for the gene also has the potential to spare women unnecessary surgery, the study showed.

Cases are subjects testing positive for the virus; those testing negative represent the comparison group.

Despite testing negative for Ebola and displaying no symptoms, she was kept in an isolation tent with no access to a shower or television.

In the third case, a girl from Memphis was found to be infected in 2004 at 9 months old after testing negative for the virus three times.

One boy's infection was detected when he was 39 months old, shortly before his death, after previously testing negative for the virus twice.

But testing negative for the three mutations does not mean someone is in the clear, as there are over a thousand BRCA mutations associated with increased cancer risk.

In all, some 1,400 women developed cervical cancer after previously testing negative in smear tests during the 2010-2014 period.

Last Friday, Hickox was placed in quarantine in New Jersey after returning from West Africa, despite testing negative for the virus.