Malaria epidemiological stratification and intervention methods in the Vietnam's malaria control program

ABSTRACT

In 2003, the malaria epidemiological stratification and intervention method which based on the geography, landscape, elevation, malaria cases, malaria parasites and malaria vectors, was implemented over the country. This stratification method aims to identify zones with different levels of malaria endemicity and population at risk of each zone. Based on this stratification, a plan for malaria control based on vector control and malaria case management will be made for each zone. The results of the stratification showed that the malaria situation of Vietnam can be divided into five different zones as follows non-malaria transmission zone including 4,534 communes with the population of 42,620,426 people accounted for 54% of the total population; zone with risk of malaria re-emergence including 2,923 communes with 18,485,308 people, accounted for 23%; zone with low malaria endemic including 1,928 communes with 9,949,205 people, accounted for 12%; zone with moderate malaria endemic including 1,003 communes with 5,540,104 people, accounted for 7%; zone with high malaria endemic including 771 communes with 3,074,115 people accounted for 4%. With the above results, the number of people needs to be protected by malaria control measures should be 37,154,286 or 46% of the total population. However, these measures should be focused on 3 endemic zones with a poulation of 18,563,244 people.