Because
this strategy failed to identify many patients
who were chronically infected with HBV or HCV,
the CDC and the U.S. Preventive Services Task Force
(USPSTF) now recommend expanded HBV and HCV
serologic screening for all people considered to be at
high risk as well as for members of groups known to
have high prevalence rates, such as people born between
1945 and 1965 and those born in certain countries
or regions