| vector competence of anopheles lesteri baisas and hu (diptera: culicidae) to plasmodium vivax in korea. | three anopheline mosquitoes in korea were studied for their abilities as vectors for plasmodium vivax. the female mosquitoes of anopheles lesteri, an. pullus and an. sinensis were allowed to suck malaria patient blood until fully fed, and they were then bred for 2 weeks to develop from malaria parasites to sporozoites. the result from the above confirmed the sporozoites in one an. lesteri of one individual and five an. sinensis of six individuals. we also confirmed that an. sinensis was the main ... | 2002 | 11949212 |
| identification and characterization of larval and adult anopheline mosquito habitats in the republic of korea: potential use of remotely sensed data to estimate mosquito distributions. | plasmodium vivax malaria reemerged in the republic of korea in 1993, with more than 2,000 cases reported in the northwestern part of the country over the last 10 years. to better assess the risk of malaria transmission we conducted a surveillance study to identify and characterize the habitats that produce potential anopheles vector mosquitoes. immature and adult mosquito collection data were incorporated into a geographic information system (gis) along with remotely sensed satellite imagery, an ... | 2005 | 16011809 |
| revisited its2 phylogeny of anopheles (anopheles) hyrcanus group mosquitoes: reexamination of unidentified and misidentified its2 sequences. | the anopheles (anopheles) hyrcanus group of mosquitoes is very important for human health because some are malarial vector mosquitoes. despite their pathological importance, some unidentified internal transcribed spacer 2 (its2) sequences have been reported from members of this group, and their phylogenetic relationships have been rarely understood. in the present study, 84 its2 sequences for the hyrcanus group members were retrieved from genbank. the detailed sequence comparison unambiguously r ... | 2007 | 17514381 |
| anopheles kleini, anopheles pullus, and anopheles sinensis: potential vectors of plasmodium vivax in the republic of korea. | anopheles sinensis wiedemann (63.3%) was the most abundant anopheles mosquito captured at cowshed resting collections in malaria high-risk areas (northern gyeonggi province) near the demilitarized zone (dmz) in korea during 2005, followed by anopheles kleini rueda (24.7%) and anopheles pullus m. yamada (8.7%). at cowshed resting collections in malaria low-risk areas (jeonnam and gyeongnam provinces), an. sinensis accounted for 96.8% of all anopheles spp. collected, followed by an. kleini rueda ( ... | 2007 | 18047210 |
| the susceptibility of anopheles lesteri to infection with korean strain of plasmodium vivax. | following its recent re-emergence, malaria has gained renewed attention as a serious infectious disease in korea. three species of the hyrcanusgroup, anopheles lesteri, anopheles sinensis and anopheles pullus, have long been suspected malaria vectors. however, opinions about their vector ability are controversial. the present study was designed with the aim of determining the susceptibility of these mosquitoes to a korean isolate of plasmodium vivax. also, an. sinensis is primarily suspected to ... | 2009 | 19284634 |
| a locally acquired falciparum malaria via nosocomial transmission in korea. | a 57-year old man who was admitted to an emergency room of a tertiary hospital with hemoptysis developed malarial fever 19 days later and then died from severe falciparum malaria 2 days later. he had not traveled outside of korea for over 30 years. through intensive interviews and epidemiological surveys, we found that a foreign patient with a recent history of travel to africa was transferred to the same hospital with severe falciparum malaria. we confirmed through molecular genotyping of the m ... | 2009 | 19724701 |
| malaria vector surveillance in ganghwa-do, a malaria-endemic area in the republic of korea. | we investigated the seasonality of anopheles mosquitoes, including its species composition, density, parity, and population densities of mosquitoes infected with the parasite in ganghwa-do (island), a vivax malaria endemic area in the republic of korea. mosquitoes were collected periodically with a dry-ice-tent trap and a blacklight trap during the mosquito season (april-october) in 2008. anopheles sinensis (94.9%) was the most abundant species collected, followed by anopheles belenrae (3.8%), a ... | 2010 | 20333283 |
| population dynamics of five anopheles species of the hyrcanus group in northern gyeonggi-do, korea. | to investigate the population densities of potential malaria vectors, anopheles species were collected by light traps in malaria endemic areas, paju and gimpo, gyeonggi-do of korea. five anopheles hyrcanus sibling species (an. sinensis, an. pullus, an. lesteri, an. kleini, and an. belenrae) were identified by pcr. the predominant species, an. pullus was collected during the late spring and mid-summer, while higher population consists of an. sinensis were collected from late summer to early autum ... | 2010 | 21234242 |
| detection of an antibody against plasmodium vivax in residents of gimpo-si, south korea, using an indirect fluorescent antibody test. | first reemerged malaria case was reported in 1993 after two decades absent in south korea. thereafter, plasmodium vivax spreads out near demilitarized zone (dmz). this study investigated the prevalence of p. vivax after the malaria transmission season in gimpo-si where adjacent to dmz of south korea. an indirect fluorescent antibody test (ifat) was performed to evaluate anti-malaria antibodies in blood samples. | 2011 | 21281481 |
| Mosquito species composition and Plasmodium vivax infection rates on Baengnyeong-do (island), Republic of Korea. | Vivax malaria is a significant military and civilian health threat in the north of the Republic of Korea (ROK). The island of Baengnyeong-do is the westernmost point of the ROK and is located close to the southwestern coast of the Democratic People's Republic of Korea (DPRK). Mosquitoes were collected using a black light trap on Baengnyeong-do, and Anopheles spp. were assayed by PCR, to identify the species, and screened for sporozoites of Plasmodium vivax. Of a subsample of 257 mosquitoes, Anop ... | 2011 | 22072836 |
| genetic compatibility between anopheles lesteri from korea and anopheles paraliae from thailand. | to assess differentiation and relationships between anopheles lesteri and anopheles paraliae we established three and five iso-female lines of an. lesteri from korea and an. paraliae from thailand, respectively. these isolines were used to investigate the genetic relationships between the two taxa by crossing experiments and by comparing dna sequences of ribosomal dna second internal transcribed spacer (its2) and mitochondrial dna cytochrome c oxidase subunit i (coi) and subunit ii (coii). resul ... | 0 | 23778670 |
| distribution of malaria vectors and incidence of vivax malaria at korean army installations near the demilitarized zone, republic of korea. | as a result of the reintroduction of malaria in the republic of korea (rok) in 1993 and the threat to military and civilian populations, the korea military national defense (mnd) increased emphasis on vector control in 2012 at rok army (roka) installations located near the dmz, while decreasing chemoprophylaxis, fearing potential drug resistance. mosquito surveillance demonstrated a need for continuous monitoring of disease patterns among roka soldiers and vector malaria infection rates to ensur ... | 2016 | 27150110 |
| knockdown resistance of anopheles sinensis in henan province, china. | vivax malaria was historically epidemic in henan province of china and anopheles sinensis was the main vectors and poor farming communities bare the greatest burden of disease. knockdown resistance in an. sinensis is one of the mechanisms of resistance against pyrethroids. in the present study, the frequency of mutations from an. sinensis was examined in henan province, china. | 2015 | 25890038 |
| historical survey of the kdr mutations in the populations of anopheles sinensis in china in 1996-2014. | anopheles sinensis has become an important malaria vector in china. the long-term extensive utilization of pyrethroids for itns and irs for mosquito control in the last three decades has resulted in the occurrence of resistant an. sinensis populations in many regions. knockdown resistance (kdr), caused by point mutations in the vgsc gene, is one of the mechanisms that confer resistance to ddt and pyrethroids. recently, several investigations revealed the kdr occurrence in some an. sinensis popul ... | 2015 | 25888824 |
| decreasing incidence of plasmodium vivax in the republic of korea during 2010-2012. | after the re-emergence of plasmodium vivax in 1993, a total of 31,254 cases of vivax malaria were reported between 1993-2012 in the republic of korea (rok). the purpose of this study was to review korea centers for disease control and prevention records to investigate the transmission of malaria from 2010-2012. | 2013 | 24010412 |
| mosquito species composition and plasmodium vivax infection rates for korean army bases near the demilitarized zone in the republic of korea, 2011. | vivax malaria is a significant military and civilian health threat in northern republic of korea (rok). mosquito collections were performed at two rok army installations, paju near the demilitarized zone (dmz) using black light traps in 2011. the dmz, a 4 km wide border, is the northernmost point of the rok and separates the rok from the democratic people's republic of korea (dprk). anopheles spp. were identified by polymerase chain reaction and screened for plasmodium vivax sporozoites. of 4,35 ... | 2012 | 23243112 |
| the polymorphism and the geographical distribution of the knockdown resistance (kdr) of anopheles sinensis in the republic of korea. | in the republic of korea (rok), six sibling species of the anopheles sinensis complex are considered the vector species of malaria, but data on their susceptibilities to malaria and vector capacities have been controversial. the intensive use of insecticides has contributed to the rapid development and spread of insecticide resistance in the an. sinensis complex. knockdown resistance (kdr) to pyrethroids and ddt in the an. sinensis complex is associated with a mutation in codon 1014 of the volta ... | 2012 | 22554130 |
| species composition, larval habitats, seasonal occurrence and distribution of potential malaria vectors and associated species of anopheles (diptera: culicidae) from the republic of korea. | larval mosquito habitats of potential malaria vectors and related species of anopheles from three provinces (gyeonggi, gyeongsangbuk, chungcheongbuk provinces) of the republic of korea were surveyed in 2007. this study aimed to determine the species composition, seasonal occurrence and distributions of anopheles mosquitoes. satellite derived normalized difference vegetation index data (ndvi) was also used to study the seasonal abundance patterns of anopheles mosquitoes. | 2010 | 20163728 |
| genetic diversity and phylogeny of aedes aegypti, the main arbovirus vector in the pacific. | the pacific region is an area unique in the world, composed of thousands of islands with differing climates and environments. the spreading and establishment of the mosquito aedes aegypti in these islands might be linked to human migration. ae. aegypti is the major vector of arboviruses (dengue, chikungunya and zika viruses) in the region. the intense circulation of these viruses in the pacific during the last decade led to an increase of vector control measures by local health authorities. the ... | 2016 | 26799213 |
| estimating the malaria transmission of plasmodium vivax based on serodiagnosis. | plasmodium vivax re-emerged in 1993 and has now become a major public health problem during the summer season in south korea. the aim of this study was to interpret and understand the meaning of seroepidemiological studies for developing the best malaria control programme in south korea. | 2012 | 22852558 |
| susceptibility of five species members of the korean hyrcanus group to brugia malayi, and hybridization between b. malayi-susceptible and -refractory anopheles sinensis strains. | five species members of the korean hyrcanus group: anopheles pullus, anopheles sinensis, anopheles kleini, anopheles belenrae, and anopheles lesteri were tested for susceptibility to brugia malayi. they were allowed to feed artificially on blood containing b. malayi microfilariae and dissected 14 days after feeding. the susceptibility rates were 60%, 65%, 90%, 100% and 100% in an. pullus, an. sinensis, an. kleini, an. belenrae, and an. lesteri, respectively. as determined by levels of susceptibi ... | 2014 | 24974643 |
| distribution and larval habitats of anopheles species in northern gyeonggi province, republic of korea. | a total of 180 larval collection sites (e.g., rice paddies, marshes, ground pools, ponds, stream margins, and irrigation and drainage ditches) was surveyed within a 2 km radius from warrior base training area, 5 km south of panmunjeom (joint security area, demilitarized zone), gyeonggi province, republic of korea (rok), from may through october, 2007 to characterize larval habitat distributions of members of the anopheles hyrcanus group (an. sinensis, an. lesteri, an. pullus, an. belenrae, an. k ... | 2011 | 21635650 |
| preliminary observation on the gradient distribution of hibernating females of anopheles sinensis and anopheles pullus in the republic of korea. | hibernating females of the anopheles hyrcanus complex were collected at 4 different latitudes at the end of the hibernation period in march of 2005 and 2006, and species were confirmed by polymerase chain reaction (pcr) identification. at paju (37.8 degrees n; average temperature in december february = -3.5 degrees c) 74.6% of the females collected were an. pullus and 22.4% were an. sinensis. at seosan (36.8 degrees n; december-february average temperature = -1.0 degrees c) and buan (35.7 degree ... | 2008 | 18437825 |
| reproductive isolation between anopheles sinensis and anopheles pullus in korea. | anopheles sinensis and an. pullus, the 2 predominant anopheline mosquito species in korea, are major malaria vectors. their morphological similarity makes them difficult to distinguish, and their taxonomic relationship remains unclear. kanda and oguma produced fertile f1 an. sinensis x an. pullus hybrids, suggesting a conspecific relationship. however, our recent internal transcribed spacer 2 dna sequence comparison of these taxa revealed 32.9% divergence, suggesting that an. sinensis and an. pu ... | 2005 | 16033116 |
| molecular evidence for synonymy of anopheles yatsushiroensis and an. pullus. | identification of species members of the hyrcanus group of anopheles is difficult because of intraspecific variation in and interspecific similarity among key characters. hibernating female anopheles pullus were collected and 6 adults were individually reared. all f1 progeny of wild-caught an. pullus were morphologically identical to an. yatsushiroensis. the 5.8s rdna-its2-28s rdna region from each of 3 an. pullus and an. yatsushiroensis (wild-caught females) and a portion of the mitochondrial c ... | 2004 | 15264614 |
| evidence for a conspecific relationship between two morphologically and cytologically different forms of korean anopheles pullus mosquito. | despite the medical importance of anopheline mosquitoes as vectors of korean vivax malaria, differentiation between korean anopheline mosquitoes by traditional morphological taxonomic criteria is difficult. an. yatsushiroensis is the second most common anopheles mosquito species in korea and a possible vector of korean vivax malaria together with an. sinensis, the predominant anopheline species. recently, an. yatsushiroensis has been declared a synonym of an. pullus, based on comparisons of egg ... | 2003 | 14744026 |
| colonization and maintenance of anopheles belenrae and anopheles pullus from the republic of korea. | the anopheles hyrcanus group in the republic of korea (rok) consists of 5 morphologically indistinct species that can only be identified with certainty by polymerase chain reaction (pcr). a total of 86 bloodfed anopheles spp. were collected from a cow barn located in the village of tongilchon near the demilitarized zone in the rok on june 13, 2016, and sent to the armed forces research institute of medical sciences in bangkok, thailand, where they were identified to species by pcr. the 1st shipm ... | 2018 | 31442141 |