It has been confirmed that Alternanthera philoxeroides (APG) can markedly protect suckling mice from being infected by epidemic hemorrhagic fever (EHF) virus. After the infected mice were treated with the effective components their survival rate increased, pathological lesion and virus antigen in
Several parts of Alternanthera philoxeroides were extracted by lead-salt sedimentation and double phase solvent extractive technique and their antiviral effects were studied. The results showed that extracts of petroleum ether, ether, and ethyl acetate have inhibitory effect on epidemic hemorrhagic