Hello! Based on your personal experience, what do you think is CFS contagious? And I am referring to CFS not to EBV (mononucleosis) which we know it is transmissible through saliva. If you think is transmissible, how can it be transmitted? Through saliva, sexually, by air, water, food, etc? In case you think is transmissible sexually what is the sexual life of the CFS patient? Can she/he still make sex, and thus put the partner on risk? Even using condoms, that is not 100% safe, and if just saliva is enough to transmit the disease, that is very bad.