Isolation of chlamydiae in untreated and Cytochalasin B treated McCoy cells

A comparison was made between untreated McCoy cells and McCoy cells treated with Cytochalasin B for the isolation of chlamydiae of subgroup A. Chlamydiae were isolated in both cell systems from 125 specimens, whereas six agents were isolated only in untreated cultures and seven agents were isolated only in Cytochalasin B treated cultures.