(Fauquier)- Health officials in northern Virginia are warning of another possible measles exposure. People who were at the Fauquier Health Emergency Department between this Monday at 3:10 p.m. to Tuesday at 12:35 a.m. may have been exposed. Symptoms could develop as late as July 9th if anyone was infected with the measles. The CDC says the number of measles cases in the country has risen to over one-thousand this year.