CynNCKV has some similarity to the picobiliphyte nano-like virus (Picobiliphyte M5584-5) and CynNCXV has some similarity to the rodent stool associated virus (RodSCV M-45).
O CynNCKV ten algunhas semellanzas co virus de tipo nano picobilifita (Picobiliphyte M5584-5), e o CynNCXV ten semellanzas co virus asociado a excrementos de roedores (RodSCV M-45).