http://thesaurus.bhlscielo.org/vocab/pthttp://thesaurus.bhlscielo.org/vocab/pt?tema=2464(+)ssRNA http://thesaurus.bhlscielo.org/vocab/pt?tema=2464 VĂrus BT http://thesaurus.bhlscielo.org/vocab/pt?tema=2464 Tymovirales NT http://thesaurus.bhlscielo.org/vocab/pt?tema=2464 Picornavirales NT http://thesaurus.bhlscielo.org/vocab/pt?tema=2464 Nidovirales NT