The persistence of malaria in Khanh Trung commune, Khanh Vinh district, Khanh Hoa province and epidemiological characteristics of asymptomatic malaria

ABSTRACT

In December 2002, 445 households and 1832 individuals of Khanh Trung commune were interviewed and examined in a cross-sectional survey (approximately 85% inhabitants of the commune). The results showed that The slide positive rate was 10.1%. The rate of asymptomatic malaria carriers was 77.2% of total malaria confirmed cases. There is a relation between people with sleeping in the forest and people without sleeping in its, OR=1.89, P=0.001. Ethnic group of Ra-glai infected with malaria (11.1%) and the age group which had highest rate of asymptomatic malaria was 5-9 years old 11.2%. Parasite density index of asymptomatic malaria group was lower than that of the fever malaria group