Have lived in AZ for 26 years and never heard of anyone dying of Valley Fever, except a few pets. Doesn't mean it hasn't happened. Hantavirus is totally different. Not just in mortality but in locality. VF is mostly in the desert areas and can be wind borne. Hantavirus is mostly confined to the Four Corners area and is much more serious. Even better for Four Corners is the area has had outbreaks of The Plague, which was being watched for this past summer. I have been at Grand Canyon NP when at least one outbreak was ongoing a few years ago. Only one fatality as I recall, a researcher who was investigating a carcass. I am surprised that one would get a bad cough and flu like symptoms and wait months to get over it. While not common, VF has the ability to kill people with weakened immune systems if not treated. Anyone who visits our beautiful state and gets these symptoms should inform the medical personnel that they were in AZ and alert them to the possibility of VF. Hope this helps.
RichH