<prompt> HbsAg carrier state is not associated with:Downs syndromeChronic renal failurePoly-aeritis nodosa PANInfectious mononucleosis  <response>: Glomerulonephritis with the nephrotic syndrome is observed occasionally; HBsAg, Ig and C3 deposition has been found in the glomerular basement membrane. Polyaeritis Nodosa develops in fewer than 1 of patients with chronic HBV infection, 20-30 of patients with PAN have HBsAg in serum. Due to decreased humoral response and repeated admissions in hospital in childhood patients of Downs have a higher prevalence of hepatitis B infection. 