The effects of climate change and globalization on mosquito vectors: Evidence from Jeju Island, South Korea on the potential for Asian tiger mosquito (Aedes albopictus) influxes and survival from Vietnam rather than Japan
Autor(es): Lee Su Hyun, Nam Kwang Woo, Jeong Ji Yeon, Yoo Seung Jin, Koh Young-Sang, Lee Seogjae, Heo Sang Taek, Seong Seung-Yong, Lee Keun Hwa
Resumo: Climate change affects the survival - transmission of arthropod vectors as well as the development rates of vector-borne pathogens. Increased international travel is also an important factor in the spread of vector-borne diseases (VBDs) such as dengue, West Nile, yellow fever, chikungunya, - malaria. Dengue is the most important vector-borne viral disease. An estimated 2.5 billion people are at risk of infection in the world - there are approximately 50 million dengue infections - an estimated 500,000 individuals are hospitalized with dengue haemorrhagic fever annually. The Asian tiger mosquito (Aedes albopictus) is one of the vectors of dengue virus, - populations already exist on Jeju Isl-, South Korea. Currently, colder winter temperatures kill off Asian tiger mosquito populations - there is no evidence of the mosquitos being vectors for the dengue virus in this location. However, dengue virus-bearing mosquito vectors can inflow to Jeju Isl- from endemic area such as Vietnam by increased international travel, - this mosquito vector's survival during colder winter months will likely occur due to the effects of climate change. In this section, we show the geographical distribution of medically important mosquito vectors such as Ae. albopictus, a vector of both dengue - chikungunya viruses; Culex pipiens, a vector of West Nile virus; - Anopheles sinensis, a vector of Plasmodium vivax, within Jeju Isl-, South Korea. We found a significant association between the mean temperature, amount of precipitation, - density of mosquitoes. The phylogenetic analyses show that an Ae. albopictus, collected in southern area of Jeju Isl-, was identical to specimens found in Ho Chi Minh, Vietnam, - not Nagasaki, Japan. Our results suggest that mosquito vectors or virus-bearing vectors can transmit from epidemic regions of Southeast Asia to Jeju Isl- - can survive during colder winter months. Therefore, Jeju Isl- is no longer safe from vector borne diseases (VBDs) due to the effects of globalization - climate change, - we should immediately monitor regional climate change to identify newly emerging VBDs.
Imprenta: PloS One, v. 8, n. 7, p. e68512, 2013
Identificador do objeto digital: 10.1371/journal.pone.0068512
Descritores: Chikungunya virus - Flaviviridae ; Chikungunya virus - Pathogenesis ; Chikungunya virus - Viral infections ; Chikungunya Virus - Virus ; Chikungunya virus - Transmission ; Chikungunya virus - Chikungunya fever ; Chikungunya virus - Dengue ; Chikungunya virus - Epidemic ; Chikungunya virus - Public health
Data de publicação: 2013
