In searching the net I found this paper that seems to support your advice: Determination of fatty acid levels in erythrocyte membranes of patients with chronic fatigue syndrome. (perfecthealthdiet.com)
The laboratory has identified interactions that are essential for basic biological events of fundamental importance which notably include sperm - egg recognition in mammals, and the invasion of erythrocytes by the blood stage of Plasmodium falciparum - the parasite responsible for most clinical cases of the deadly infectious diseases, malaria. (sanger.ac.uk)
They also tested erythrocyte sedimentation rates, which measure inflammation. (naturalhealth365.com)