Abstract:

Objective To analyze the outcomes of malaria control in Qinzhou city, Guangxi Zhuang Autonomous Region, from 1952 to 2015, for scientific evidence to consolidate the achievement and ultimately eradicate malaria. Methods The data for prevention and control of malaria were collected in counties and districts under the administration of Qinzhou city from 1952 through 2015, and software Excel was used to count and chart the data for statistical analysis. Results Historically, malaria transmission in Qinzhou areas was associated with four species of Anopheles mosquitoes as well as Plasmodium falciparum and Plasmodium vivax, and the local malaria infection appeared in natural epidemic status in the early 1950s, with the highest incidence being in 1954 by 3 829.92 in 100 000 population. The number of malaria cases accounted for 88.92% of the total infections in local areas and 90.36% of deaths were associated with malaria in 1950s. The incidence of malaria was dropped to 9.65 in 100 000 population in 1979. Assessment of prevention and control effects met the criteria of primary elimination of malaria as specified by the Nation Ministry of Health in 1980s. Only one death case was reported in local area by 2000, and control of malaria infection in all counties and districts reached the elimination criteria by 2014. Malaria infection associated with domestic migrant population was reported in 1980s, and newly infections in the past decade were imported cases from African countries. Conclusion Malaria infection is absent in population living in Qinzhou areas for many years, suggesting that our city has met the criteria of malaria eradication at national level. However surveillance on malaria infection and timely treatment of the newly reported case should be emphasized because of the risks of imported cases from foreign countries.

Key words: Malaria, Control, Elimination, Migrant population