The disease often begins with a variety of symptoms such as fever, chills, muscle aches, nausea, vomiting, diarrhea, dizziness, and cough. These symptoms can last anywhere from 3 days to 2 weeks, after which the person becomes extremely ill with pneumonia and, sometimes, heart complications. Based on previous studies, 30-50% of infections will result in death.
No evidence of spreading person-to-person. Hantavirus has not been shown to spread person-to-person in the United States.