A comparison between the haemagglutination inhibition and complement fixation tests for Newcastle disease.

@article{Allan1976ACB,
  title={A comparison between the haemagglutination inhibition and complement fixation tests for Newcastle disease.},
  author={W. H. Allan and Richard E Gough},
  journal={Research in veterinary science},
  year={1976},
  volume={20 1},
  pages={101-3}
}
The value of the complement fixation (CF) test as a means of assessing the immune response of fowls to Newcastle disease virus was examined using several strains of virus. A close degree of correlation was found between the CF test and the simpler haemagglutination-inhibition (HI) test. Like the HI test, the CF test only gave an indication of the immune status and was not a direct measurement of immunity.