An official website of the United States government
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.
Postdoctoral scientist Monica Santin (left foreground) and technicians Kristin Cameron and Robert Palmer prepare PCR samples to detect Cryptosporidium as zoologist Ron Fayer (right) examines banding patterns in agarose gels for positive specimens.