Sentence examples for in a later sample from inspiring English sources

A primary dengue infection is defined as the absence of specific anti-dengue IgG antibodies in the first serum samples during the acute phase, with anti-dengue IgM, virus isolation and/or virus RNA being present, and dengue virus IgG being detected in a later sample.

In contrast, secondary dengue infection is defined by the presence of specific anti-dengue IgG and the absence of anti-dengue IgM in the first sample, together with a positive RT-PCR and/or virus isolation, followed by the presence of anti-dengue IgM in a later sample.

A secondary DENV infection is defined by the presence of specific anti-dengue IgG and the absence of anti-dengue IgM in the first sample, together with a positive RT-PCR and/or virus isolation, followed by the presence of anti-dengue IgM in a later sample [ 7].

The cut-off point had good performance because area under ROC curve was 0.98 (Fig.  1).> -wrap-foot> aBest cut-off point A primary DENV infection is defined as the absence of specific anti-dengue IgG antibodies in the first serum samples during the acute phase, with anti-dengue IgM, virus isolation and/or virus RNA being present, and dengue virus IgG being detected in a later sample.

In fact, the findings obtained in this study suggest a high level of intermittent excretion, as in more than 26% of the re-sampled farms a previously positive flock tested negative in a later sampling and 63.9% overall tested positive.

In 26.3% of the cases a previously positive farm resulted negative in a later sampling and conversely, 38 farms (9.7%) tested negative in the first sampling but resulted positive in any of the subsequent samplings.

To evaluate the intermittent excretion of the pathogen in milk, we sampled 391 additional farms from 2 to 5 times, resulting that in 26.3% of the cases a previously positive farm tested negative in a later sampling.

Comparatively, this NDR risk equation is based on a later sample in 1998 2003, which is large enough to allow the use of a 5-year estimate of risk and is probably more accurate than 10-year estimates of risk for the interval from baseline data and more useful from a patient treatment perspective than events in the far future, as emphasized in a recent review (9).

In the present study, we analyzed all samples for 2-butoxyethanol and 2,2-methoxyethoxyethanol, and in a later second sampling round, we analyzed 14 additional samples for six other glycol ethers.

Application of a 4-year risk equation from the study sample in a later separate NDR sample followed during 4 years confirmed the accuracy of the NDR risk equation, with good calibration according to the ratio of observed CVD rate/predicted risk.

By then, the mothers (139 in this later sample) were in their 70s and 80s.