Correct classification of the true status of herds is an important component of epidemiologic
studies and animal disease-control programs. We review theoretical aspects of herd-level …

▪ Abstract Diverse subdisciplines within entomology recognize the detection of rare
individuals as the precursor to effective management of these individuals. Unfortunately …

Five diagnostic tests based on enzyme-linked immunosorbent assay (ELISA) technology for
bovine paratuberculosis were evaluated by using individual serum or milk samples from 359 …

The report provided here contains a simplified set of diagnostic testing recommendations.
These recommendations were developed on the basis of research funded by the USDA …

Objective—To evaluate associations among herd infection status, herd management
practices, and familiarity of the herd manager with Mycobacterium paratuberculosis (Johne's …

When designing a herd-level prevalence study that will use an imperfect diagnostic test, it is
necessary to consider the test sensitivity and specificity. A new approach was developed to …

Disease in livestock populations tends to cluster at the herd level. In order to account for this—
and to overcome the problems of simple random sampling from a very large population …

The national bovine paratuberculosis (PTB) seroprevalence (apparent prevalence) in the
Belgian cattle population was determined by a serological survey that was conducted from …

Abstract The Standards for Reporting of Diagnostic Accuracy (STARD) statement (www.
stard-statement. org) was developed to encourage complete and transparent reporting of …

Corynebacterium pseudotuberculosis is the etiologic agent of caseous lymphadenitis, which
is a serious, economically important problem for sheep production. We examined the …