[1] Lund Univ, Malmo Univ Hosp, Dept Med Microbiol, Malmo, Sweden
[2] Natl Hepatol & Trop Med Res Inst, Viral Hepatitis Res Lab, Cairo, Egypt
[3] Univ Maryland Baltimore, Int Hlth Div, Dept Epidemiol & Prevent Med, Baltimore, MD USA
[4] Natl Liver Inst, Menoufia, Egypt
[5] Cairo Univ, Natl Canc Inst, Cairo, Egypt
[6] Cairo Univ, Dept Trop Med, Cairo, Egypt
[7] Georgetown Univ, Lombardi Canc ctr, Washington, DC USA
[8] Karolinska Inst, Dept Virol Immunol & Vaccinol, Swedish Inst Infect Dis Control, Solna, Sweden
[9] Karolinska Inst, Dept Microbiol Tumor & Cell Biol, Solna, Sweden