Abstract: The present invention provides novel antibody sequences that bind Varicella Zoster Virus (VZV) and neutralize VZV infection. The novel sequences can be used for the medical management of VZV infection, in particular for detecting the virus or for preparing pharmaceutical compositions to be used in the prophylactic or therapeutic treatment of VZV infection.

Abstract: The present invention provides novel antibody sequences that bind and neutralize Rubella Virus (RuV). The novel sequences can be used for the medical management of RuV infection, in particular for detecting the virus or for preparing pharmaceutical compositions. The RuV-specific antigens recognized by such antibody sequences can be identified using novel phage libraries that display peptides.

Abstract: An human antibody anti-NS3 protein of the hepatitis C virus (HCV) is described, as will as synthetic and recombinant fragments thereof able to inhibit the helicase activity of the NS3 protein, both in vitro and in vivo, and uses thereof.

Abstract: The invention refers to a human antibody, or its functional fragments, directed against the HCV E2 glycoprotein, able to have a neutralizing activity in vivo; a composition for anti-HCV therapy comprising in a therapeutically effective amount the antibody; a composition for topical use in gel, creme, ointment and ovule formulations; the use of the antibody for validating anti-HCV vaccines.

Abstract: Novel anti-idiotype monoclonal antibodies are described which are capable of specifically reacting with the idiotype of human anti-gp120 antibodies, of inhibiting the binding between the gp120 antigen and human anti-gp120 antibodies, and of evoking a neutralising anti-gp120 immune response in an animal host to which they are administered. The anti-idiotype antibodies of the invention can be identified based on the amino acid sequences of the variable portions of their light and heavy chains. In addition, a method for obtaining a panel of anti-idiotype monoclonal antibodies, expression vectors and transformed host cells usable in a recombinant DNA procedure in order to generate the aforesaid anti-idiotype monoclonal antibodies, as well as the therapeutic, prophylactic and diagnostic use of such antibodies are disclosed.