Nbvwat-Npffa a̱u Nbvwat, a̱ yet kyang a ma a̱na moi an pfwa ni a̱ na gwai rai nyyai an pfwa. [1][2] Nbvwat-npffa a̱ na mon bu pffa du̱ na yya pfwong ansham ba. Sarei ka̱sa ka banyet yya hyywu Nbvwat npffa atswa 90 an cci a kpa shai u zzak iodine kayat rwam.[3] Duyrek ti u nyyai du̱ latin 'a̱gutturia', madei wa zzak. Nbvwat-npffa a̱ yet hyywu ka̱yit ba.Da nu a̱ hywai du̱kunkra̱ng rwam ba),mada̱i a̱ cong bu̱ du̱kpak.