Fig 1. Map of Peru indicating the study site of Iquitos in the Peruvian Amazon Basin and the capital Lima, site of the main U.S. Medical Research Unit No. 6 laboratory.
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.