FIG 1.
Frequency distribution plots of culturable bacteriophage in mean log10 PFU per 10 ml of sewage in primary wastewater samples. Solid lines represent median values; dotted lines represent quartiles.
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.