The results of re-active case detection in 6 malaria focus in Xy commune (Quang Tri) and Ea Lam commune (Phu Yen) showed that: A total of 535 people at risk being tested, the number of people with fever accounted for 28.97%, 4 people infected with malaria parasites, accounting for 0.75% (95% CI: 0.20 - 1.90).