Abstract: The invention provides a new enteroviral species call EV79, and functional parts, derivatives and analogues of said virus. Proteinaceous molecules capable of specifically binding EV79, such as isolated or recombinant antibodies, are also herewith provided. A virus and/or proteinaceous molecule of the invention is particularly suitable for diagnosis of an EV79-related disease. Vaccines, pharmaceutical compositions and diagnostic kits comprising said virus or proteinaceous molecule are also provided, as well as methods for producing same. A diagnostic kit of the invention may as well comprise a primer/probe capable of amplifying and/or hybridizing the genome or part thereof of EV79.