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  1. Article: Microbial Precipitation of Cr(III)-Hydroxide and Se(0) Nanoparticles During Anoxic Bioreduction of Cr(VI)- and Se(VI)-Contaminated Water.

    Kim, Yumi / Oh, Jong-Min / Roh, Yul

    Journal of nanoscience and nanotechnology

    2018  Volume 17, Issue 4, Page(s) 2302–2304

    Abstract: This study examined the microbial precipitations of Cr(III)-hydroxide and Se(0) nanoparticles during anoxic bioreductions of Cr(VI) and Se(VI) using metal-reducing bacteria enriched from groundwater. Metal-reducing bacteria enriched from groundwater at ... ...

    Abstract This study examined the microbial precipitations of Cr(III)-hydroxide and Se(0) nanoparticles during anoxic bioreductions of Cr(VI) and Se(VI) using metal-reducing bacteria enriched from groundwater. Metal-reducing bacteria enriched from groundwater at the Korea Atomic Energy Research Institute (KAERI) Underground Research Tunnel (KURT), Daejeon, S. Korea were used. Metal reduction and precipitation experiments with the metal-reducing bacteria were conducted using Cr(VI)- and Se(VI)-contaminated water and glucose as a carbon source under an anaerobic environment at room temperature. XRD, SEM-EDX, and TEM-EDX analyses were used to characterize the mineralogy, crystal structure, chemistry, shape, and size distribution of the precipitates. The metal-reducing bacteria reduced Cr(VI) of potassium chromate (K₂CrO₄) to Cr(III) of chromium hydroxide [Cr(OH)3], and Se(VI) of sodium selenate (Na₂SeO₄) to selenium Se(0), with changes of color and turbidity. XRD, SEM-EDX, and TEM-EDX analyses revealed that the chromium hydroxide [Cr(OH)₃] was formed extracellularly with nanoparticles of 20–30 nm in size, and elemental selenium Se(0) nanoparticles had a sphere shape of 50–250 nm in size. These results show that metal-reducing bacteria in groundwater can aid or accelerate precipitation of heavy metals such as Cr(VI) and Se(VI) via bioreduction processes under anoxic environments. These results may also be useful for the recovery of Cr and Se nanoparticles in natural environments.
    MeSH term(s) Biodegradation, Environmental ; Chromates/analysis ; Chromates/chemistry ; Chromates/metabolism ; Chromium/analysis ; Chromium/chemistry ; Chromium/metabolism ; Groundwater/microbiology ; Hydroxides ; Nephelometry and Turbidimetry ; Oxidation-Reduction ; Particle Size ; Potassium Compounds/analysis ; Potassium Compounds/chemistry ; Potassium Compounds/metabolism ; Water Purification/methods
    Chemical Substances Chromates ; Hydroxides ; Potassium Compounds ; Chromium (0R0008Q3JB) ; potassium chromate(VI) (5P0R38CN2X)
    Language English
    Publishing date 2018-04-10
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1533-4880
    ISSN 1533-4880
    DOI 10.1166/jnn.2017.13315
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Seasonal Occurrence of Haemaphysalis longicornis (Acari: Ixodidae) and Haemaphysalis flava, Vectors of Severe Fever With Thrombocytopenia Syndrome (SFTS) in South Korea.

    Jung, Minhyung / Kho, Jung-Wook / Lee, Wook-Gyo / Roh, Jong Yul / Lee, Doo-Hyung

    Journal of medical entomology

    2019  Volume 56, Issue 4, Page(s) 1139–1144

    Abstract: The seasonal abundance of Haemaphysalis longicornis Neumann and H. flava Neumann (Acari: Ixodidae) was monitored from 2015 through 2017 in Gyeonggi-do, South Korea. The hard ticks were surveyed monthly using CO2 bait traps from April to November and ... ...

    Abstract The seasonal abundance of Haemaphysalis longicornis Neumann and H. flava Neumann (Acari: Ixodidae) was monitored from 2015 through 2017 in Gyeonggi-do, South Korea. The hard ticks were surveyed monthly using CO2 bait traps from April to November and flagging from July to September in a coniferous forest, a deciduous forest, shrubs, and a grassland vegetation types. Haemaphysalis longicornis and H. flava were most abundant in the grassland and shrubs, which yielded over 50% of the total number of ticks in all 3 yr. Furthermore, H. longicornis comprised up to 90% of the ticks collected. Generally, peaks of nymph, adult, and larva numbers were observed from April to June, from June to July, and from August to September, respectively. Half of the ticks were pooled and tested for the presence of the SFTS virus with negative results.
    MeSH term(s) Animal Distribution ; Animals ; Arachnid Vectors ; Ecosystem ; Ixodidae ; Phlebovirus ; Republic of Korea ; Seasons
    Language English
    Publishing date 2019-03-30
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 410635-0
    ISSN 1938-2928 ; 0022-2585
    ISSN (online) 1938-2928
    ISSN 0022-2585
    DOI 10.1093/jme/tjz033
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  3. Article ; Online: Geographical Genetic Variation and Sources of Korean Aedes albopictus (Diptera: Culicidae) Populations.

    Lee, EunJung / Yang, Seong-Chan / Kim, Tae-Kyu / Noh, Byung-Eon / Lee, Hak Seon / Kim, Hyunwoo / Roh, Jong Yul / Lee, Wook-Gyo

    Journal of medical entomology

    2020  Volume 57, Issue 4, Page(s) 1057–1068

    Abstract: Aedes albopictus (Skuse, 1894) is a mosquito vector raising global health concerns owing to its transmission of dengue, Zika, and chikungunya viruses. This vector accounts for a large proportion of the Korean mosquito community; however, autochthonous ... ...

    Abstract Aedes albopictus (Skuse, 1894) is a mosquito vector raising global health concerns owing to its transmission of dengue, Zika, and chikungunya viruses. This vector accounts for a large proportion of the Korean mosquito community; however, autochthonous clinical cases resulting from this species remain unreported in South Korea. This study aimed to examine the geographical genetic variations and sources of Ae. albopictus populations in South Korea exclusively on the basis of COI gene analysis from 292 samples collected from 37 localities in 2016-2018 and 290 reference sequences from GenBank. Thirty-eight haplotypes were identified among the 292 Ae. albopictus samples, with H1 (n = 190, 65.1%), H29 (n = 24, 8.22%), and H32 (n = 24, 8.22%) being the most common and widely distributed haplotypes in the mainland, southern coastal region, and Jeju Island, respectively. In general, high haplotype (≥0.5; 44.7%) and low nucleotide (≤0.00148 max.) diversity were observed in these populations. Based on eight regional groups, results of neutral tests and a mismatch analysis supported demographic expansions after bottlenecks. Furthermore, analysis of molecular variance, FST, and K2P distance showed that Gyeongsangnam-do, Jeju Island, and mainland groups were genetically differentiated. Haplotype network and phylogenetic analyses revealed that the sources of the main haplotypes are related to strains from other countries. The current findings need to be validated with additional sampling from heterogeneous habitats and different genetic markers. However, our results suggest that haplotype changes should be closely monitored for efficient vector surveillance and control.
    MeSH term(s) Aedes/genetics ; Animals ; Electron Transport Complex IV/genetics ; Genetic Variation ; Haplotypes ; Mosquito Vectors/genetics ; Phylogeny ; Phylogeography ; Republic of Korea
    Chemical Substances Electron Transport Complex IV (EC 1.9.3.1)
    Language English
    Publishing date 2020-01-23
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 410635-0
    ISSN 1938-2928 ; 0022-2585
    ISSN (online) 1938-2928
    ISSN 0022-2585
    DOI 10.1093/jme/tjz254
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Geographical Genetic Variation and Sources of Korean Aedes albopictus (Diptera: Culicidae) Populations

    Lee, EunJung / Yang, Seong-Chan / Kim, Tae-Kyu / Noh, Byung-Eon / Lee, Hak Seon / Kim, Hyunwoo / Roh, Jong Yul / Lee, Wook-Gyo

    Journal of medical entomology. 2020 Jan. 23, v. 57, no. 4

    2020  

    Abstract: Aedes albopictus (Skuse, 1894) is a mosquito vector raising global health concerns owing to its transmission of dengue, Zika, and chikungunya viruses.This vector accounts for a large proportion of the Korean mosquito community; however, autochthonous ... ...

    Abstract Aedes albopictus (Skuse, 1894) is a mosquito vector raising global health concerns owing to its transmission of dengue, Zika, and chikungunya viruses.This vector accounts for a large proportion of the Korean mosquito community; however, autochthonous clinical cases resulting from this species remain unreported in South Korea.This study aimed to examine the geographical genetic variations and sources of Ae. albopictus populations in South Korea exclusively on the basis of COI gene analysis from 292 samples collected from 37 localities in 2016–2018 and 290 reference sequences from GenBank. Thirty-eight haplotypes were identified among the 292 Ae. albopictus samples, with H1 (n = 190, 65.1%), H29 (n = 24, 8.22%), and H32 (n = 24, 8.22%) being the most common and widely distributed haplotypes in the mainland, southern coastal region, and Jeju Island, respectively. In general, high haplotype (≥0.5; 44.7%) and low nucleotide (≤0.00148 max.) diversity were observed in these populations. Based on eight regional groups, results of neutral tests and a mismatch analysis supported demographic expansions after bottlenecks. Furthermore, analysis of molecular variance, FST, and K2P distance showed that Gyeongsangnam-do, Jeju Island, and mainland groups were genetically differentiated. Haplotype network and phylogenetic analyses revealed that the sources of the main haplotypes are related to strains from other countries.The current findings need to be validated with additional sampling from heterogeneous habitats and different genetic markers. However, our results suggest that haplotype changes should be closely monitored for efficient vector surveillance and control.
    Keywords Aedes albopictus ; coasts ; dengue ; genes ; genetic variation ; haplotypes ; medical entomology ; monitoring ; mosquito vectors ; phylogeny ; variance ; South Korea
    Language English
    Dates of publication 2020-0123
    Size p. 1057-1068.
    Publishing place Entomological Society of America
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 410635-0
    ISSN 0022-2585
    ISSN 0022-2585
    DOI 10.1093/jme/tjz254
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  5. Article: Annual Fluctuation in Chigger Mite Populations and

    Kim, Seong Yoon / Gill, Byoungchul / Song, Bong Gu / Chu, Hyuk / Park, Won Il / Lee, Hee Il / Shin, E-Hyun / Cho, Shin-Hyeong / Roh, Jong Yul

    Osong public health and research perspectives

    2019  Volume 10, Issue 6, Page(s) 351–358

    Abstract: Objectives: Chigger mites are vectors for scrub typhus. This study evaluated the annual fluctuations in chigger mite populations and : Methods: During 2006 and 2007, chigger mites were collected monthly from wild rodents in 4 scrub typhus endemic ... ...

    Abstract Objectives: Chigger mites are vectors for scrub typhus. This study evaluated the annual fluctuations in chigger mite populations and
    Methods: During 2006 and 2007, chigger mites were collected monthly from wild rodents in 4 scrub typhus endemic regions of South Korea. The chigger mites were classified based on morphological characteristics, and analyzed using nested PCR for the detection of
    Results: During the surveillance period, the overall trapping rate for wild rodents was 10.8%. In total, 17,457 chigger mites (representing 5 genera and 15 species) were collected, and the average chigger index (representing the number of chigger mites per rodent), was 31.7. The monthly chigger index was consistently high (> 30) in Spring (March to April) and Autumn (October to November). The mite species included
    Conclusion: The findings demonstrated a bimodal pattern of the incidence of
    Language English
    Publishing date 2019-12-03
    Publishing country Korea (South)
    Document type Journal Article
    ZDB-ID 2656431-2
    ISSN 2233-6052 ; 2210-9099
    ISSN (online) 2233-6052
    ISSN 2210-9099
    DOI 10.24171/j.phrp.2019.10.6.05
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  6. Article ; Online: Protein Tyrosine Phosphatase SHP-2 Is Positively Involved in Platelet-Derived Growth Factor-Signaling in Vascular Neointima Formation via the Reactive Oxygen Species-Related Pathway.

    Won, Kyung-Jong / Lee, Hwan Myung / Lee, Chang-Kwon / Lin, Hai Yue / Na, Haerang / Lim, Ki Won / Roh, Hui Yul / Sim, Seobo / Song, Hyuk / Choi, Wahn Soo / Lee, Seung Hyun / Kim, Bokyung

    Journal of pharmacological sciences

    2019  Volume 115, Issue 2, Page(s) 164–175

    Abstract: The roles of Src homology domain 2-containing protein tyrosine phosphatase 2 (SHP-2) and its signaling in atherosclerosis have not been explored. Therefore, we investigated the roles of SHP-2 in the movement of rat aortic smooth muscle cells (RASMCs) and ...

    Abstract The roles of Src homology domain 2-containing protein tyrosine phosphatase 2 (SHP-2) and its signaling in atherosclerosis have not been explored. Therefore, we investigated the roles of SHP-2 in the movement of rat aortic smooth muscle cells (RASMCs) and in the neointima formation of the carotid artery. Platelet-derived growth factor (PDGF)-BB (1 - 20 ng/ml) increased the activity and phosphorylation of SHP-2 and migration in RASMCs and these were suppressed by SHP-2 inhibitor NSC-87877 (30 μM) and small interfering RNA of SHP-2. PDGF-BB increased the phosphorylations of spleen tyrosine kinase (Syk) and p38 mitogen-activated protein kinase (MAPK), which were recovered by inhibition of SHP-2. Moreover, PDGF-BB increased the levels of reactive oxygen species (ROS) and ROS inhibitors decreased PDGF-BB-increased migration. Treatment of RASMCs with H
    Language English
    Publishing date 2019-06-11
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 2104264-0
    ISSN 1347-8648 ; 1347-8613
    ISSN (online) 1347-8648
    ISSN 1347-8613
    DOI 10.1254/jphs.10250FP
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  7. Article ; Online: Surveillance of Chigger Mite Vectors for Tsutsugamushi Disease in the Hwaseong Area, Gyeonggi-do, Republic of Korea, 2015.

    Bahk, Young Yil / Jun, Hojong / Park, Seo Hye / Jung, Haneul / Jegal, Seung / Kim-Jeon, Myung-Deok / Roh, Jong Yul / Lee, Wook-Gyo / Ahn, Seong Kyu / Lee, Jinyoung / Joo, Kwangsig / Gong, Young Woo / Kwon, Mun Ju / Kim, Tong-Soo

    The Korean journal of parasitology

    2020  Volume 58, Issue 3, Page(s) 301–308

    Abstract: Owing to global climate change, the global resurgence of vector-borne infectious diseases and their potential to inflict widespread casualties among human populations has emerged as a pivotal burden on public health systems. Tsutsugamushi disease (scrub ... ...

    Abstract Owing to global climate change, the global resurgence of vector-borne infectious diseases and their potential to inflict widespread casualties among human populations has emerged as a pivotal burden on public health systems. Tsutsugamushi disease (scrub typhus) in the Republic of Korea is steadily increasing and was designated as a legal communicable disease in 1994. The disease is a mite-borne acute febrile disease most commonly contracted from October to December. In this study, we tried to determine the prevalence of tsutsugamushi disease transmitted by chigger mites living on rodents and investigated their target vector diversity, abundance, and distribution to enable the mapping of hotspots for this disease in 2015. A total of 5 species belonging to 4 genera (109 mites): Leptotrombidium scutellare 60.6%, L. pallidum 28.4% Neotrombicula tamiyai 9.2%, Euschoengastia koreaensis/0.9%), and Neoschoengastia asakawa 0.9% were collected using chigger mite collecting traps mimicking human skin odor and sticky chigger traps from April to November 2015. Chigger mites causing tsutsugamushi disease in wild rodents were also collected in Hwaseong for the zoonotic surveillance of the vector. A total of 77 rodents belonging to 3 genera: Apodemus agrarius (93.5%), Crocidura lasiura (5.2%), and Micromys minutus (1.3%) were collected in April, October, and November 2015. The most common mite was L. pallidum (46.9%), followed by L. scutellare (18.6%), and L. orientale (18.0%). However, any of the chigger mite pools collected from rodent hosts was tested positive for Orientia tsutsugamushi, the pathogen of tsutsugamushi disease, in this survey.
    MeSH term(s) Animals ; Arachnid Vectors ; Humans ; Mites ; Murinae ; Republic of Korea/epidemiology ; Scrub Typhus/epidemiology ; Scrub Typhus/etiology ; Scrub Typhus/transmission ; Time Factors ; Trombiculidae
    Language English
    Publishing date 2020-06-26
    Publishing country Korea (South)
    Document type Journal Article
    ZDB-ID 286875-1
    ISSN 1738-0006 ; 0023-4001
    ISSN (online) 1738-0006
    ISSN 0023-4001
    DOI 10.3347/kjp.2020.58.3.301
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  8. Article ; Online: Production of thermotolerant entomopathogenic Isaria fumosorosea SFP-198 conidia in corn-corn oil mixture.

    Kim, Jae Su / Je, Yeon Ho / Roh, Jong Yul

    Journal of industrial microbiology & biotechnology

    2010  Volume 37, Issue 4, Page(s) 419–423

    Abstract: Low thermotolerance of entomopathogenic fungi is a major impediment to long-term storage and effective application of these biopesticides under seasonal high temperatures. The effects of high temperatures on the viability of an entomopathogenic fungus, ... ...

    Abstract Low thermotolerance of entomopathogenic fungi is a major impediment to long-term storage and effective application of these biopesticides under seasonal high temperatures. The effects of high temperatures on the viability of an entomopathogenic fungus, Isaria fumosorosea SFP-198 (KCTC 0499BP), produced on different substrates amended with various additives were explored. Ground corn was found to be superior in producing the most thermotolerant conidia compared to yellow soybean, red kidney bean, and rice in a polyethylene bag production system. Using ground corn mixed with corn oil as a substrate resulted in only 7% reduction in germination compared to ground corn alone (67% reduction) after exposure of conidia to 50 degrees C for 2 h. Corn oil as an additive for ground corn was followed by inorganic salts (KCl and NaCl), carbohydrates (sucrose and dextrin), a sugar alcohol (sorbitol), and plant oils (soybean oil and cotton seed oil) in ability to improve conidial thermotolerance. Unsaturated fatty acids, such as linoleic acid and oleic acid, the main components of corn oil, served as effective additives for conidial thermotolerance in a dosage-dependent manner, possibly explaining the improvement by corn oil. This finding suggests that the corn-corn oil mixture can be used to produce highly thermotolerant SFP-198 conidia and provides the relation of unsaturated fatty acids as substrates with conidial thermotolerance.
    MeSH term(s) Corn Oil/metabolism ; Culture Media/chemistry ; Hot Temperature ; Hypocreales/physiology ; Hypocreales/radiation effects ; Microbial Viability/radiation effects ; Spores, Fungal/physiology ; Spores, Fungal/radiation effects
    Chemical Substances Culture Media ; Corn Oil (8001-30-7)
    Language English
    Publishing date 2010-02-16
    Publishing country Germany
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1482484-X
    ISSN 1476-5535 ; 1367-5435
    ISSN (online) 1476-5535
    ISSN 1367-5435
    DOI 10.1007/s10295-010-0692-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Three-year surveillance of culicine mosquitoes (Diptera: Culicidae) for flavivirus infections in Incheon Metropolitan City and Hwaseong-si of Gyeonggi-do Province, Republic of Korea

    Jegal, Seung / Jun, Hojong / Kim-Jeon, Myung-Deok / Park, Seo Hye / Ahn, Seong Kyu / Lee, Jinyoung / Gong, Young Woo / Joo, Kwangsig / Kwon, Mun Ju / Roh, Jong Yul / Lee, Wook-Gyo / Lee, Woojoo / Bahk, Young Yil / Kim, Tong-Soo

    Acta tropica. 2020 Feb., v. 202

    2020  

    Abstract: Japanese encephalitis virus (JEV) is a single stranded positive sense RNA virus of the genus Flavivirus that belongs to family Flaviviridae and emerged as one of the most pivotal form of viral encephalitis. The virus is transmitted to humans by mosquito ... ...

    Abstract Japanese encephalitis virus (JEV) is a single stranded positive sense RNA virus of the genus Flavivirus that belongs to family Flaviviridae and emerged as one of the most pivotal form of viral encephalitis. The virus is transmitted to humans by mosquito vector and is an etiological agent of acute zoonotic infection. In this study, we investigated distribution and density over 3-year period in central regions of Korean peninsula. We selected two cities as mosquito-collecting locations and subdivided them into five collection sites; downtown Incheon Metropolitan City as a typical urban area, and the Hwaseong-si area as a rural area. A total of 35,445 female culicine mosquitoes were collected using black light traps or BG SentinelTM traps from March to November 2016–2018. Aedes (Ae.) vexans nipponii was the most frequently collected specimens (48.91%), followed by Culex (Cx.) pipiens (32.05%), Ochlerotatus (Och.) dorsalis (13.58%), Och. koreicus (1.68%), and Cx. tritaeniorhynchus (1.49%). In the urban area, Cx. pipiens was the predominant species (92.21%) and the other species accounted for <5% of the total mosquitoes collected. However, in the rural area, Ae. vexans nipponii had the highest population (61.90%), followed by Och. dorsalis (17.10%), Cx. tritaeniorhynchus (1.84%) and Och, koreicus (1.78%). Culicine mosquitoes were identified at the species level, placed in pools of up to 30 mosquitoes each, and screened for flavivirus RNA using the SYBR Green-based RT-PCR. Three of the assayed 1092 pools were positive for Chaoyang virus from Ae. vexans nipponii and Japanese encephalitis virus from Cx. pipiens. The maximum likelihood estimations (the estimated number of virus-positive mosquitoes/1000 mosquitoes) for Ae. vexans nipponii positive for Chaoyang virus and Cx. pipiens for Japanese encephalitis virus were 3.095 and 0.20, respectively. The results of our study demonstrate that although mosquito-borne diseases were not detected in the potential vectors, enhanced monitoring and long-term surveillance of these vector viruses are of great public health importance.
    Keywords Aedes vexans ; Culex ; Flavivirus infections ; Japanese encephalitis virus ; Ochlerotatus ; RNA ; cities ; etiological agents ; females ; humans ; insect vectors ; light traps ; monitoring ; mosquito-borne diseases ; public health ; reverse transcriptase polymerase chain reaction ; rural areas ; statistical analysis ; urban areas ; viral encephalitis ; viruses ; zoonoses ; South Korea
    Language English
    Dates of publication 2020-02
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 210415-5
    ISSN 1873-6254 ; 0001-706X
    ISSN (online) 1873-6254
    ISSN 0001-706X
    DOI 10.1016/j.actatropica.2019.105258
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  10. Article ; Online: Distribution of malaria vectors and incidence of vivax malaria at Korean army installations near the demilitarized zone, Republic of Korea.

    Chang, Kyu Sik / Yoo, Dae-Hyun / Ju, Young Ran / Lee, Wook Gyo / Roh, Jong Yul / Kim, Heung-Chul / Klein, Terry A / Shin, E-Hyun

    Malaria journal

    2016  Volume 15, Issue 1, Page(s) 259

    Abstract: Background: 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) ...

    Abstract Background: 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 ensure positive outcomes.
    Methods: Anopheles spp. were collected from May-October at three ROKA installations in three locations near the DMZ. Each of the areas included one installation <2 km and two installations 11-12 km from the DMZ in Paju and Yeoncheon counties, Gyeonggi Province. Anopheles spp. were identified by polymerase chain reaction (PCR) techniques and then assayed for the presence of vivax malaria sporozoites. The ROK MND reported vivax malaria patients monthly to Korea Centers for Disease Control and Prevention. Correlations for the incidence of Plasmodium vivax patients and infected Anopheles species were analysed using the Wilcoxon rank sum test, Pearson correlation test and liner regression analysis.
    Results: A total of 4282 Anopheles spp. were collected. Anopheles kleini (69.5 %) was the most commonly collected, followed by Anopheles pullus (17.3 %), Anopheles belenrae (4.5 %), Anopheles sineroides (4.2 %), Anopheles sinensis sensu stricto (2.7 %), and Anopheles lesteri (1.9 %). Overall, 21 malaria patients were reported by the ROK MND. The monthly incidence of the malaria patients correlated with the monthly number of Plasmodium vivax sporozoite positive Anopheles spp. The monthly numbers of An. kleini demonstrated the highest correlations to the numbers of ROKA malaria patients throughout the mosquito season (P < 0.01). Anopheles spp. positive for P. vivax and malaria patients at ROKA installations located <2 km from the DMZ were higher than for ROKA installations located 11-12 km from DMZ.
    Conclusion: The number of Anopheles spp. positive for P. vivax sporozoites correlated with the monthly number of malaria cases and exposure of ROKA soldiers from May-October to P. vivax malaria infections. Malaria vector surveillance and vector control is warranted as part of an effective malaria management program at ROKA installations located near DMZ.
    MeSH term(s) Animals ; Anopheles/growth & development ; Anopheles/parasitology ; Female ; Humans ; Incidence ; Malaria, Vivax/epidemiology ; Military Personnel ; Mosquito Vectors/growth & development ; Mosquito Vectors/parasitology ; Plasmodium vivax/isolation & purification ; Republic of Korea/epidemiology ; Sporozoites
    Language English
    Publishing date 2016--05
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1475-2875
    ISSN (online) 1475-2875
    DOI 10.1186/s12936-016-1301-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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