Medical tests, like the blood tests that look for antibodies to the novel coronavirus, aren't perfect. Sometimes, you end up with a false negative: You actually did have the coronavirus and your ...

Taso and Megan Stefanidis of Manalapan, New Jersey, developed symptoms of COVID-19 a few days after gathering with their families for Christmas. Other family members ended up testing positive for the ...

Chance agreement may account for a sizeable proportion of the specificity of a screening test when the disease prevalence is low. Conversely, the observed sensitivity may be largely accounted for by ...

We are counting on COVID-19 antibody tests to estimate the prevalence and lethality of the novel coronavirus and to identify people who were infected but now may be immune. Are the tests up to those ...

During the Covid-19 pandemic, words and phrases that have typically been limited to epidemiologists and public health professionals have entered the public sphere. Although we’ve rapidly accepted ...

Background Heart auscultation is a widely used and cost-effective clinical tool for detecting valvular heart disease (VHD), particularly in primary care. However, existing evidence on its diagnostic ...

The Simtomax point of care test (POCT) has low sensitivity in screening patients for celiac disease, particularly when used for pediatric patients in whom the probability of celiac disease is high, a ...