KRT88P and hepatitis B virus infection: Screening for viral hepatitis B was carried out by determining the serological profile of the hepatitis B virus, comprising three tests: HBsAg (surface antigen of the hepatitis B virus), HBsAb or anti-HBs (surface antibody of the hepatitis B virus), and HBcAb or anti-HBc (nucleocapsid antibody of the hepatitis B virus).