Abstract: The present invention relates to a method of producing a polyomavirus or polyomavirus-derived virus-like particle (vlp) carrying on its surface at least one targeting molecule that binds to a cell of interest. Furthermore, the present invention relates to a composition comprising such a polyomavirus or polyomavirus-derived vlp and to the use of the polyomavirus or polyomavirus-derived vlp of the invention or the composition of the invention for use as a medicament. The present invention further relates to a kit comprising the polyomavirus or polyomavirus-derived vlp or the composition of the invention.

Abstract: The invention relates to the novel use of gene markers in a method of predicting the risk of or diagnosing a subject to develop graft versus host reaction (GvHR) or graft versus host disease (GvHD). In other aspects the invention also relates to methods of monitoring the efficacy of treatment of GvHR or GvHD, and methods of screening a candidate substance for the treatment of GvHR or GvHD.

Abstract: The invention concerns new virus-like particles composed of the VP1 protein of the JC virus, a process for their production and their use in analytical, diagnostic and therapeutic methods.

Abstract: A method of treating viral diseases in a human subject is disclosed. The method involves applying effective amounts of the compound: ##STR1## wherein X is an azido group, a methoxy radical or a fluorine atom and B is thymine, uracil, guanine, cytosine, purine or hypoxanthine if X is methoxy or fluorine, and B is guanine, purine or hypoxanthine if X is azido or a pharmaceutically acceptable salt thereof. Also disclosed are compositions and compounds useful in the method.