Histo-morphometric analysis applied to spleens of Marek's disease virus inoculated chickens.

Summary As part of a larger experiment to compare the pathogenic effects of different strains of Marek's disease virus, a counting procedure for tissue components in histological sections is presented which may quantify the relative volumes occupied by the components. The method is demonstrated on spleens taken from 8‐weeks‐old chickens, treated at one‐day‐old with a cell‐associated pathogenic strain of Marek's disease virus (MDV), a cell‐associated vaccine strain, or a MDV‐free cell suspension.