Very contagious to adults:  symtoms: Continual compliant as to need for names,dates and places. Patient has a blank expression,sometimes deaf to spouse an children. Has no taste for work of any kind except ,feverisly looking through records at libraries and court houses.  Has compulison towrite letters. Swears at mail man when he doesnt leave mail. Frequents strange places such as cemeteries ,ruins., an remote ,desolete country areas. Makes secreet night calls, hides ohone bills from spouse  and mumbles to self.   No known cure:treatment:   Medicine is useless, disease is not fatel,but gets progressively worse.   Patient should attend geneagology work shops,subscribe to geneagological magazines and be given a quiet corner in the house where he or she  can work.   Remarks:   The unusaul nature of this disease is,   The sicker the patient gets,   the more he or she  enjoyes it.   Bill n Lois