According to monitoring and epidemiological studies, the incidence of HB in the United States is 1.5–1.9 cases per million, showing an increasing trend ( Sivaprakasam et al., 2011 ).
1
—
—
According to monitoring and epidemiological studies, the incidence of HB in the United States is 1.5–1.9 cases per million, showing an increasing trend ( Sivaprakasam et al., 2011 ).