This one is probably more thriller than horror but I've never seen a better place for guessing movie titles from little info. so maybe you guys can crack this one too. It's basically a man-hunt movie from the 70's (could possibly be late 60's or early 80's) , I saw it on TV sometime in the 90's. The main character is a guy who has been infected or is carrying some kind of infectious disease or bacteria, not sure if it's just a regular disease or some kind of bio-weapon, but he's showing flu like symptoms and sweating a lot. The authorities are tracking him down and there are a lot of scenes in the control room where the search is being coordinated from, mixed with scenes of the guy on the run through a city, on trains, in hotel rooms etc. I think it had 1 or 2 reasonably well known actors in it, is set in the US or Canada, had a decent budget so had good production values and is in the style of the usual 70's doomsday type disaster movie. When I saw "The Satan Bug" was out on Blu-ray I thought that was it and ordered it without checking the plot too closely, but now that I've watched that I know it's not that one after all. Have spent hours looking through lists of 70's horror and thriller movies and not come up with anything, so any suggestions would be welcome. It's not "The Cassandra Crossing". Thanks!