A 48 year old waitress presents to a physician with malaise, loss of appetite, nausea, moderate fever, and jaundice.Laboratory tests indicate a marked increase in serum transaminases. Serology for hepatitis viruses is performed and indicates positive results for the presence of HBsAg, HBc IgM antibody, and HCV antibody. Antibody tests for HBsAb and HAV are negative. The results indicate: