As an expert in the field of infectious diseases, I can tell you that the incubation period for hantavirus can vary significantly. Typically, it ranges from 1 to 6 weeks after exposure. However, symptoms can sometimes appear more quickly or take longer to manifest. The onset of symptoms is often gradual, starting with flu-like signs such as fever, muscle aches, and fatigue. If the infection progresses to the more severe pulmonary form, known as Hantavirus Pulmonary Syndrome (HPS), it can develop within a week of the initial symptoms. It's crucial to seek medical attention if you believe you've been exposed to hantavirus, particularly if you experience these symptoms.

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Symptoms usually appear within two to four weeks of infection, but can appear as early as one week or as late as six weeks after infection. Initial symptoms are general and ?u-like: fever (101�� F and above); headache; abdominal, joint, and lower back pain; sometimes nausea and vomiting.read more >>