• Fu-Huang Lin, Yu-Ching Chou, Chi-Jeng Hsieh, Yao-Ching Huang, and Chia-Peng Yu.
• School of Public Health, National Defense Medical Center, Taipei City, Taiwan.
• Medicine (Baltimore). 2025 Jan 17; 104 (3): e41321e41321.

AbstractAlthough the World Health Organization (WHO) certified Taiwan as being malaria-free in 1965, there are reports of a few imported cases each year by travelers who visit malaria-endemic areas. This study examined the epidemiology of imported malaria cases in Taiwan from 2014 to 2020, utilizing national surveillance data from the Taiwan Centers for Disease Control. Malaria cases were confirmed through the application of standard laboratory methods. Passenger data came from the Tourism Bureau, Ministry of Transportation and Communication, Taiwan (TBMTC). All data were analyzed using SPSS version 21. The analysis included a dataset comprising 64 cases of imported malaria. Of the total cases, 77.8% were acquired from Africa, and 17.5% from Asia. Plasmodium falciparum was responsible for more than half (57.1%) of the cases, Plasmodium vivax malaria for 25.4% of cases, Plasmodium malariae malaria for 6.3%, Plasmodium ovale malaria for 4.8%, and unspecified pathogen malaria for 6.3% of the cases. Majority of the patients were male (75%) and were predominantly aged 20 to 59 years (70.3%). Most cases of imported malaria occurred during the fall season, and 51.6% of cases occurred in 8 cities during the period of 2014 to 2020. No evidence exists to indicate that indigenous malaria transmission occurs in Taiwan. Anopheles minimus was found in 4 cities (counties), namely Tainan City and Pingtung County in Southern Taiwan; Hualien County and Taitung County in Eastern Taiwan. The findings of this study highlight the necessity for robust surveillance systems, effective vector control measures, and targeted interventions for travelers and immigrants to prevent malaria outbreaks and maintain Taiwan's malaria-free status.Copyright © 2025 the Author(s). Published by Wolters Kluwer Health, Inc.

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