PHWR Public Health Weekly Report

Vol.15 No.17, April 28, 2022 Article TypeEpidemiology and SurveillanceNoncommunicable Disease Statistics

• Epidemiology and Surveillance 2022-04-28

  0 190 76

  2021 World malaria report (Status of world malaria in 2020)

  Hyun-Il Shin, Bora Ku, Hee-Il Lee

  Public Health Weekly Report 2022; 15(17): 1117-1130

  

  

  Abstract

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  Among the five species of malaria, Plasmodium falciparum and P. vivax are important in public health management. P. falciparum is the most prevalent species in the African continent and a major cause of death by malaria. P. vivax has a lower risk than P. falciparum but occurs in a large area.
  By 2020, it was estimated that the number of infected cases and malaria-related deaths increased to 241 million and 627,000, respectively. Regionally, the World Health Organization (WHO) estimated that the majority of the cases in 2020 occurred in the African region (95%). By country, the WHO reported that malaria occurred, in descending order, in Nigeria (26.8%), the Democratic Republic of the Congo (12.0%), Uganda (5.4%), Mozambique (4.2%), Angola (3.4%), and Burkina Faso (3.4%). Furtermore, it was reported that children under the age of five accounted for 77% of all malaria deaths. Many countries are moving forward to elimination. China received malaria elimination certification from the WHO in 2021, and the Islamic Republic of Iran had no indigenous malaria cases for three consecutive years (2018-2020).
  The Division of Vectors and Parasitic Diseases, Korea Disease Control and Prevention Agency continues to cooperate with international and national agencies to control or eliminate malaria.

• Epidemiology and Surveillance 2022-04-28

  0 237 88

  Monitoring of malaria vector mosquitoes and Plasmodium vivax infection in the Republic of Korea, 2020

  BoGyeong Han, Hyun-Il Shin, Hee Il Lee

  Public Health Weekly Report 2022; 15(17): 1131-1141

  

  

  Abstract

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  The Division of Vector and Parasitic Diseases of the Korea Disease Control and Prevention Agency(KDCA) has been conducting a malaria-carrying mosquito investigation and monitoring project since 2009 to monitor domestic mosquitoes that transmit Plasmodium vivax in the Republic of Korea. In 2021, 50 malaria endemic areas were selected, and the density of vector mosquitoes and the proportion of protozoa infection were investigated between April and October. The number of malaria vector mosquitoes in 2021 was 94 trap index(TI), a decrease of 45.0% compared to the average year, and an increase of 51.6% compared to the previous year. In 2021, due to the increase in the average temperature due to low precipitation, the year-round highest density of malaria vector mosquitoes was 10 TI in 28 weeks, an increase of 4 TI from the same week of the previous year. One case of positive Plasmodium vivax in vector mosquitoes was detected at 32 weeks, a decrease of 98.4% compared to 63 cases in the previous year. Therefore, the minimum positive proportion of protozoa was 0.1%, which could be considered to be the cause of the decrease in the number of patients. Compared to 2020, the collection density of vector mosquitoes has increased, so continuous monitoring is deemed necessary.

• Noncommunicable Disease Statistics 2022-04-28

  0 63 79

  Trends in prevalence of secondhand smoke exposure, 2010-2020

  Public Health Weekly Report 2022; 15(17): 1142-1143

  

  

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