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.
Graph of origin countries of case reports. Others: China, Korea, Tunisia, Spain, Turkey, Belgium, Australia, Switzerland, United Kingdom, Germany, Egypt, Canada, Brazil, Taiwan, Ukraine, Bulgaria, Ecuador, Croatia, Portugal, Netherlands, and Peru.
