Figure 1.
Positive Monospot tests from 1997 to 2012. Number of tests performed per year shown by grey line and right hand scale. Age-gender standardised rate shown by black line and left hand scale.
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.