Please discuss the events that led to a diagnosis of hantavirus.
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How is hantavirus pulmonary syndrome diagnosed?
Currently, there are no readily available tests to diagnose HPS or even hantavirus infection in the early stage of the infection or disease mainly because the early symptoms are so nonspecific and the disease of HPS so infrequent. There has been no pressing need or use for a test. However, if the more severe HPS disease develops, the disease is presumptively diagnosed by the patient's association with an area where rodents proliferate or areas where HPS is known to occur (for example, the Four Corners area and more recently the Yosemite National Park recreational area, especially certain tent-cabins rented to the public). Sequential chest X-rays may show worsening changes and fluid buildup. Definitive diagnosis is usually done by the CDC labs using special immunological tests that can distinguish hantavirus from Ebola, Marburg, and other viruses.