Sentence examples for results become negative from inspiring English sources

Consequently, infection control precautions may either be prolonged until sputum acid-fast or culture results become negative, or stopped based on unreliable indicators such as symptomatic response or an arbitrary number of days of treatment [ 40].

The observation that rates of IGRA positivity are higher in individuals with CXR and CT lesions suggesting old healed TB than in those without such lesions [ 8] is in contrast with the suggestion that IGRA results become negative once the mycobacteria enter a dormant state [ 11].

The patients were isolated until the results became negative.

Sera with positive test results were diluted two-fold until the test results became negative.

Results became negative by January 17 , 2004 with no illness or fever in the previous 2 months.

There was no difference in the bacterial load among the groups but sputum smear microscopy results became negative faster in cases than in controls.

However, it is important that these ELISA based results are confirmed with more sensitive technique such as HCV-RNA by PCR, since it has been shown that some positive ELISA results becomes negative when confirmed by PCR [ 9].

To ensure successful treatment and cure, we intend to clinically follow up the patient for several decades until serologic results eventually become negative (7 ).

In eq 23, the resulting concentration (cA) would become negative for the infinitely long exposure time t.

We shall show (in "Low confinement: the linear-noise approximation" in "Results") that the ACF may become negative due to oscillations, which may make Eq. (4) unsuitable as a measure of a correlation time.

The direct costs of mitigation may be, for example, US$30/tCO2, but when health co-benefits are accounted for, the figure may drop substantially or even become negative (i.e., result in net savings).