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False negative test results may occur if the test is performed late in the course of the illness or if the test sample is not appropriately acquired. [17] Testing people for HSV when they are asymptomatic is not recommended due to the high false-positivity rate. [18] A false positive test may cause relationship difficulties. [18]
The false positive rate is calculated as the ratio between the number of negative events wrongly categorized as positive (false positives) and the total number of actual negative events (regardless of classification). The false positive rate (or "false alarm rate") usually refers to the expectancy of the false positive ratio.
The false positive rate (FPR) is the proportion of all negatives that still yield positive test outcomes, i.e., the conditional probability of a positive test result given an event that was not present. The false positive rate is equal to the significance level. The specificity of the test is equal to 1 minus the false positive rate.
Relative to rates in Europe and North America, HSV-2 seroprevalency is high in Central and South America. Infection levels are estimated at 20% to 60%. [3] [24] During the mid-1980s, HSV-2 prevalence was 33% in 25- to 29-year-old women and 45% in those aged 40 and over in Costa Rica. In the early 1990s HSV-2 prevalence was approximately 45% ...
[1] [2] Both HSV-1 and HSV-2 are very common and contagious. They can be spread when an infected person begins shedding the virus. As of 2016, about 67% of the world population under the age of 50 had HSV-1. [3] In the United States, about 47.8% and 11.9% are estimated to have HSV-1 and HSV-2, respectively, though actual prevalence may be much ...
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Worldwide rates of either HSV-1 and/or HSV-2 are between 60 and 95% in adults. [4] HSV-1 is more common than HSV-2, with rates of both increasing as people age. [4] HSV-1 rates are between 70% and 80% in populations of low socioeconomic status and 40% to 60% in populations of improved socioeconomic status. [4]
The false positive rate on rapid antigen testing is rare. One study from 2022 estimated that 0.05% of positive tests were false positives. Richard Watkins M.D., ...
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