Shiao Men-fang explains that with frequent air connections between Africa and major European cities such as London, Paris and Frankfurt, a few Anopheles gambiae malarial mosquitoes often "hitch rides" on Boeing 747s and other large aircraft, and this leads to malaria being transmitted to people living in the vicinity of the European airports.
國防醫學院預防醫學研究所所長蕭孟芳指出，由於倫敦、巴黎、法蘭克福等大城市與非洲往來相當密切，七四七等大型飛機經常由非洲「搭載」一些岡比亞瘧蚊回去，造成機場附近居民感染瘧疾。