Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Presentation of AHF in guinea pigs and humans. Systemically infected guinea pigs typically are asymptomatic for 7–14 d and then show a rapid decline to death within 0–3 d. In humans, infections, likely transmitted mucosally, are asymptomatic for 4–21 d, followed by a week of flu-like symptoms, and another week of either improvement or further decline.
