Parratt D, Peel J A
J Clin Pathol. 1972 Oct;25(10):846-9. doi: 10.1136/jcp.25.10.846.
A test for farmer's lung is described employing the indirect fluorescent antibody technique. The test compared very favourably with standard precipitin tests, detecting 88% of a series of positive cases, as opposed to 38% detected by a precipitin test. The fluorescent antibody test, in addition, introduced some measure of quantitation of the serological response in the disease.