<prompt> Nikeza impendulo yalo mbuzo oyinkimbinkimbi: Lithini igama eligcwele lesifo sokuphefumula esibangelwa amagciwane ucwaningo lukaYi Guan olwalusiza ekuvimbeleni ukuqubuka kwaso?  <response>: i - severe acute respiratory syndrome isifo sokuphefumula esibucayi 