Southwest cautious over hantavirus outbreak.
D000818:Animals; D004196:Disease Outbreaks; D018778:Hantavirus Infections / Q000453:epidemiology*; D006801:Humans; D012376:Rodent Diseases / Q000453:epidemiology*; D012377:Rodentia; D015206:Southwestern United States / Q000453:epidemiology; D014887:Weather; D015047:Zoonoses