1
so huu hau het nguoi, sau luc co cac va dap nhe, phan mem o hc6an hay dui xuat se xuat hien cac vet tham, luc an vao khong dau. Hoac tren da noi cac mang xuat huyet (khong noi san hay khong co dau hieu ngua tren be mat da). voi nhung nguoi xuat huyet o hai tay hoac lung co khap nguoi nhung mang nguoi boc lo xuat huyet truoc tien lai o chan. nhung dau hieu tren rat mang the benh ly cua benh hiem ng