>>>Are most children born in the USA given hepatitis B vaccine?
No. Only when the mother is HBsAg positive are the new borns vaccinated.
>>>does this likely include HBV vaccine?
Your vaccination record would be the one to check.
In 1991 the Advisory Committee on Immunization Practices (ACIP) of the Centers for Disease Control (CDC) recommended that all infants be injected with the first dose of hepatitis B vaccine at birth before being discharged from the hospital newborn nursery.
American children born in 1998 are required by most states to be injected with 33 or 34 doses of 9 or 10 different viral and bacterial vaccines to enter school, including three doses of hepatitis B vaccine.