The latest report by the International Committee on Taxonomy of Viruses (2005) lists 5450 viruses, organized in over 2,000 species, 287 genera, 73 families and 3 orders.
O último informe do Comité Internacional de Taxonomía de Virus (2005) incluía 5 450 virus distintos, organizados nunhas 2 000 especies, 287 xéneros, 73 familias e 3 ordes.