Global analysis of HCV/HBV codynamics model with antibody immunity Ahmed M. Elaiw, Afnan D. Al Agha, Ghadeer Alsaadi and Atef D. Hobiny Eur. Phys. J. Plus, 139 9 (2024) 850 Published online: 24 September 2024 DOI: 10.1140/epjp/s13360-024-05604-2