The proportion of hepatitis-B-susceptible people was lower among people born in a hepatitis B endemic country (28%, 2,184/7,751) compared to those born in Australia (34%, 7,250/21,033), those born in a non-endemic country (33%, 2,031/6,231), or those with either no country of birth recorded or in a country with unknown hepatitis B prevalence (32%, 2,675/8,320). The gene discussed is PPIB; the disease is hepatitis A virus infection.