RT Journal Article SR Electronic T1 Isolation of chlamydia in irradiated and non-irradiated McCoy cells. JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 1003 OP 1004 DO 10.1136/jcp.28.12.1003 VO 28 IS 12 A1 Johnson, L A1 Harper, I A YR 1975 UL http://jcp.bmj.com/content/28/12/1003.abstract AB Specimens from eye and genital tract were cultured in parallel in irradiated and non-irradiated McCoy cells and the frequency of isolation of chlamydia using these culture methods was compared. There was a significant difference between the frequencies of isolation; irradiated McCoy cells produced a greater number of positive results.