[The nutritional-viral etiology of epidemic neuropathy. The Group for the Study of Epidemic Neuropathy].

Viral sequences of the cerebrospinal fluid were amplified by using oligonucleotides that are homologous to region 5' of the Enteroviruses. The results showed a great variability in the amplified sequences, suggesting the presence of enteroviral quasispecies with altered biological properties in the stressed individuals that may play an important role in the neurological damage.