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Gossypium hirsutum belongs to the family Malvaceae and genus Gossypium, the name of the genus is derived from the Arabic word goz, which refers to a soft substance. This plant occupies a very important position in traditional medicine because of its ethnomedicinal value. The aim of the study was to evaluate the antiviral effect of Gossypium hirsutum extract on Newcastle disease virus. The experimental design involved the use of 59 birds (broiler). The phase involved pre

Newcastle disease (ND) is an economically important disease of poultry. Vaccination had been the only way of prevention in Nigeria and indeed many countries of the world. Possible therapy is presently lacking. Drugs developed from medicinal chemistry, plant natural products constitute major sources of innovative therapeutic agents for various infectious diseases. Here we studied the in-vivo antiviral effect of Tetrapleura tetraptera (Tt) pods on ND virus in Birds. The aim of this study is to test the ability of this plant to prevent death in Birds. The study employed one (1) phase experimental design. Two concentrations of Tt extract (1.0%, 0.1%) and control were used for treatment in phase 1. All test birds were treated at pre-exposition prophylaxis, at time of prophylaxis Original Research Article