The last thing you should worry about is the way to diagnose hantavirus to make sure you have exactly this syndrome. Unfortunately, because of the mysterious and rare nature of this disease, the healthcare professionals have no special examinations and tools to detect HPS. The initial signs are typical for many other infections and viruses, so it is hard to tell.
The disease is also rather rare, absent in the US, so not many facts are available. In fact, the is not sharp nee to run a particular test to diagnose HPS. The known infectious regions are the Four Corners and the Yosemite National Park. Various zones of recreation outside the United States have threats. In my cases, the person will realize he or she is infected with HPS.