Tumors associated with oncogenic viruses and recombinant vaccines

Recombinant vaccinia viruses as live vaccines.

Recombinant vaccinia viruses can be constructed that express foreign antigens. These viruses retain their infectivity and synthesise the foreign gene product in tissue culture and in vaccinated animals. Following vaccination, specific antibody and cell-mediated immune responses are generated against the foreign protein and in several cases these have protected the animal against subsequent chal...

Recombinant viruses as vaccines against viral diseases.

Vaccine approaches to infectious diseases are widely applied and appreciated. Amongst them, vectors based on recombinant viruses have shown great promise and play an important role in the development of new vaccines. Many viruses have been investigated for their ability to express proteins from foreign pathogens and induce specific immunological responses against these antigens in vivo. General...

Oncogenic Viruses

Association of human papilloma viruses with adnexal tumors

Background: Some studies have reported a correlation between adnexal tumors and human papilloma virus (HPV) infection. We performed this study to determine the incidence of HPV infection in adnexal tumor samples to further clarify any potential link between HPV and the pathogenesis of adnexal tumors.Methods: A total of 65 formalin-fixed, paraff...

H5N1 Viruses and Vaccines

The establishment and spread of highly pathogenic avian influenza (HPAI) viruses of the H5N1 subtype in birds and coincident infections in humans since 2003 have raised concerns that we may be facing an influenza pandemic caused by an H5N1 influenza virus. In this brief Opinion piece, we consider the pandemic threat posed by H5N1 viruses and review the published data on the evaluation of H5N1 v...