Kellett B S, Bywater J E
Lab Anim. 1980 Apr;14(2):83-6. doi: 10.1258/002367780780942881.
The direct india-ink immunoreaction and the india-ink immunoreaction inhibition tests are described and results are compared with those obtained by the indirect fluorescence antibody test. Titrations of seropositive samples were made by 2 methods and the titres obtained were similar. Some advantages of the india-ink immunoreaction as a diagnostic test are discussed.