Morgellons is a condition that results from an infection. There is some evidence that the infection MD is associated with may be sexually transmissible (Culture and identification of Borrelia spirochetes in human vaginal and seminal secretions (nih.gov)), but the evidence suggests MD will only occur in those that are genetically predisposed to developing the condition. "Preliminary genetic studies have demonstrated nine genes with significant sequence variation in MD patients (E Sapi, University of New Haven, unpublished observation, 2017). Examination of genetic factors that contribute to MD is currently in progress." (History of Morgellons disease: from delusion to definition (nih.gov))