Article
Entomology
Eunice Nayeli Martinez-Garcia, Esteban E. Diaz-Gonzalez, Carlos F. Marina, J. Guillermo Bond, Jorge J. Rodriguez-Rojas, Gustavo Ponce-Garcia, Rosa M. Sanchez-Casas, Ildefonso Fernandez-Salas
Summary: Diseases transmitted by Aedes mosquitoes are a growing global concern. The Sterile Insect Technique (SIT) is a strategy for controlling mosquito populations, and egg storage is essential in SIT programs. This study found that two moisturizing substances, hydrolyzed collagen and Hyalurosmooth(R), can prolong the viability of Aedes mosquito eggs, showing promise in mass rearing insect production for vector control.
Article
Immunology
Yusnita Mirna Anggraeni, Triwibowo Ambar Garjito, Mega Tyas Prihatin, Sri Wahyuni Handayani, Kusumaningtyas Sekar Negari, Ary Oktsari Yanti, Muhammad Choirul Hidajat, Dhian Prastowo, Tri Baskoro Tunggul Satoto, Sylvie Manguin, Laurent Gavotte, Roger Frutos
Summary: Chikungunya virus has undergone a genotype replacement in Indonesia, with the Asian-Pacific genotype replacing the Asian genotype. The study raises questions about the mechanisms behind this rapid and massive replacement.
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
(2021)
Article
Ecology
Alexandra A. Mushegian, Naresh Neupane, Zachary Batz, Motoyoshi Mogi, Nobuko Tuno, Takako Toma, Ichiro Miyagi, Leslie Ries, Peter A. Armbruster
Summary: Recurring seasonal changes can lead to the evolution of phenological cues. For example, many arthropods undergo photoperiodic diapause when the days get shorter in autumn. This study shows that latitudinal clines in diapause timing of an invasive mosquito can be explained by a novel application of a growing degree day model.
Article
Biotechnology & Applied Microbiology
Nanwintoum Severin Bimbile Somda, Hanano Yamada, Carina Kraupa, Wadaka Mamai, Hamidou Maiga, Simran Singh Kotla, Thomas Wallner, Claudia Martina, Jeremy Bouyer
Summary: This study investigated the use of nitrogen in the irradiation of adult Aedes albopictus and Ae. aegypti. The results showed that nitrogen treatment improved the longevity of irradiated males but slightly reduced their flight ability. Nitrogen treatment was found to be a reliable method for adult mosquito immobilization.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Entomology
Andres Carrazco-Montalvo, Patricio Ponce, Stephany D. Villota, Emmanuelle Quentin, Sofia Munoz-Tobar, Josefina Coloma, Varsovia Cevallos
Summary: This study investigated the genetic diversity of Ecuadorian populations of Aedes albopictus, a mosquito species known for transmitting viral diseases, and predicted its suitable habitats in Ecuador. The results revealed two haplotypes within the populations, suggesting potential differences in adaptation traits between them. The study also presented a prediction model that showed the vector could spread through all regions of Ecuador, including the Galapagos Islands. Understanding different aspects of the local populations can contribute to better vector surveillance and control strategies in the country.
Article
Multidisciplinary Sciences
Jordan Ahn, Marianne Sinka, Seth Irish, Sarah Zohdy
Summary: Anopheles stephensi, an invasive malaria vector native to South Asia and the Arabian Peninsula, was detected in Djibouti's seaport, followed by Ethiopia, Sudan, Somalia, and Nigeria. Bilateral maritime trade data was used to identify at-risk countries and develop prioritization lists based on the likelihood of introduction. Sudan and Djibouti were ranked as the top two countries with the highest likelihood of An. stephensi introduction through maritime trade. Network analysis highlighted potential introduction pathways and identified countries for surveillance and control efforts.
SCIENTIFIC REPORTS
(2023)
Article
Parasitology
Maria C. Carrasquilla, Mario I. Ortiz, Cielo Leon, Silvia Rondon, Manisha A. Kulkarni, Benoit Talbot, Beate Sander, Heriberto Vasquez, Juan M. Cordovez, Camila Gonzalez
Summary: A study conducted in Ibague, Colombia found that Aedes aegypti and Aedes albopictus mosquitoes are vectors for dengue, Zika, and chikungunya viruses, with dengue and chikungunya circulating in the area but Zika virus remaining undetected. The research results showed that mosquitoes were mainly found in low socioeconomic areas and indoors, with a higher number of female mosquitoes that have fed on human blood, indicating a high risk of arbovirus transmission in Ibague.
PARASITES & VECTORS
(2021)
Article
Parasitology
Jiyeong Shin, Jongwoo Jung
Summary: The study compared the genetic diversity and structure of Ae. albopictus and Ae. flavopictus in Korea, finding that Ae. albopictus had lower genetic diversity, while Ae. flavopictus showed higher genetic diversity. Although the genetic structure of both species was not significant, Ae. flavopictus exhibited greater genetic diversity compared to Ae. albopictus.
PARASITES & VECTORS
(2021)
Review
Immunology
Zhuanzhuan Liu, Qingxin Zhang, Liya Li, Junjie He, Jinyang Guo, Zichen Wang, Yige Huang, Zimeng Xi, Fei Yuan, Yiji Li, Tingting Li
Summary: This review explores the correlations between temperature and dengue epidemics, including the distribution and development of Aedes mosquitoes, the structure of DENV, and the vector competence of Aedes mosquitoes. Additionally, it discusses the immune and metabolic mechanism through which temperature affects the vector competence of Aedes mosquitoes to transmit DENV.
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
(2023)
Article
Agronomy
Tong Liu, Yu-Gu Xie, Feng Lin, Li-Hua Xie, Wen-Qiang Yang, Xing-Hua Su, Chun-Quan Ou, Lei Luo, Qi Xiao, Lu Gan, Xiao-Guang Chen
Summary: The study successfully developed a long-lasting biological larvicide called Bti-BLOCK, which demonstrated good efficacy in controlling the dengue vector mosquito Ae. albopictus in both laboratory and field experiments. Bti-BLOCK slowly released insecticidal toxins, maintaining effective dose for up to 6 months, lasting for at least 12 weeks in the laboratory and at least 6 weeks in the field.
PEST MANAGEMENT SCIENCE
(2021)
Article
Parasitology
Minghui Zhao, Xin Ran, Yu Bai, Zu Ma, Jian Gao, Dan Xing, Chunxiao Li, Xiaoxia Guo, Xianyi Jian, Wei Liu, Yun Liao, Kan Chen, Hengduan Zhang, Tongyan Zhao
Summary: This study investigated the genetic diversity and differentiation of Ae. aegypti and Ae. albopictus in Hainan Island and the Leizhou Peninsula, China. The results showed that Ae. albopictus had higher genetic diversity than Ae. aegypti. These findings are important for controlling arboviral diseases transmitted by mosquitoes and may support the elimination of Ae. aegypti in China.
PARASITES & VECTORS
(2023)
Article
Parasitology
Muhammad Sajjad Sarwar, Nusrat Jahan, Azeem Ali, Hafiz Kamran Yousaf, Iqra Munzoor
Summary: The study found that Wolbachia strain wAlbB has the potential to control the spread of dengue fever in Aedes aegypti populations by producing a strong cytoplasmic incompatibility effect, with limited impact on the host.
PARASITES & VECTORS
(2022)
Article
Agronomy
Ru Yan, Qiaoling Zhou, Zhanyi Xu, Yuyan Wu, Guonian Zhu, Mengcen Wang, Yirong Guo, Ke Dong, Mengli Chen
Summary: Results show that pyrethrum vapor induces spatial repellency in Aedes albopictus, a major vector of dengue and West Nile viruses. Using electroantennogram recordings, it was found that five of the six pyrethrins elicited responses, with four activating olfactory-receptor neurons and inducing repellency in the mosquitoes. This study lays a foundation for future research on pyrethrins and the development of new mosquito repellents.
PEST MANAGEMENT SCIENCE
(2021)
Article
Parasitology
Rasika Dalpadado, Deepika Amarasinghe, Nayana Gunathilaka, Nalin Ariyarathna
Summary: This study investigated the bionomics aspects of Aedes aegypti and Aedes albopictus in Sri Lanka, including breeding, resting, host-seeking, and feeding preferences. The results showed that Aedes aegypti predominantly breeds in temporary removals and discarded non-degradables, while Aedes albopictus mainly oviposits in natural locations and temporary removals. Adult mosquitoes of both species tend to rest indoors, with Aedes albopictus being more prevalent in outdoor vegetation. The biting patterns of these mosquitoes exhibit a typical diurnal rhythm, with two peaks of activity in the morning and afternoon.
PARASITES & VECTORS
(2022)
Article
Multidisciplinary Sciences
Shayenne Olsson Freitas Silva, Cecilia Ferreira de Mello, Ronaldo Figueiro, Tatiana Docile, Michele Serdeiro, Fabiana Fagundes Fumian, Jeronimo Alencar
Summary: This study characterized the effects of abiotic factors on the oviposition behavior, abundance, and diversity of mosquito vectors of the yellow fever virus (YFV) in a tropical forest area in Brazil. The study highlighted the importance of Haemagogus janthinomys and Hg. leucocelaenus as primary YFV vectors in forest areas. Different mosquito species showed varying abundance at different heights, while Aedes albopictus was positively correlated with temperature. Monitoring Culicidae is essential for assessing the YFV transmission cycle in Atlantic forest fragments.
SCIENTIFIC REPORTS
(2021)
Article
Parasitology
Lee-Jin Bong, Wu-Chun Tu, Kok-Boon Neoh
Summary: The study revealed significant differences in immature developmental time and survival rates of Aedes aegypti populations from two cities in southern Taiwan. However, there was weak local differentiation within each region. Additionally, three field populations showed a male-biased sex ratio, and female size had a nonsignificant effect on adult life history.
Article
Agronomy
Jin-Jia Yu, Lee-Jin Bong, Amonrat Panthawong, Theeraphap Chareonviriyaphap, Wei-Ting Liu, Kok-Boon Neoh
Summary: The study found that PBO significantly affected the escape response of field mosquitoes, with an increase in escape percentage between 2- and 10-fold. In addition, PBO-pretreated mosquitoes from seven out of 11 field strains exhibited a knockdown percentage significantly higher than that of mosquitoes treated with deltamethrin only in corresponding strains.
PEST MANAGEMENT SCIENCE
(2021)
Article
Parasitology
Hadian Iman Sasmita, Beni Ernawan, Muklas Sadar, Indah Arastuti Nasution, Murni Indarwatmi, Wu-Chun Tu, Kok-Boon Neoh
Summary: This study investigated the effects of land transportation on the survival, longevity, and mating performance of sterilized male mosquitoes. The results showed that transportation negatively impacted the survival and longevity of adults, and overcrowding affected the transportation of pupae. Additionally, transportation and packing density had notable effects on the mating ability and competitiveness of the transported males.
Article
Infectious Diseases
Hadian Iman Sasmita, Kok-Boon Neoh, Sri Yusmalinar, Tjandra Anggraeni, Niann-Tai Chang, Lee-Jin Bong, Ramadhani Eka Putra, Amelia Sebayang, Christina Natalina Silalahi, Intan Ahmad, Wu-Chun Tu
Summary: Ovitrap surveillance is an effective tool for predicting mosquito population dynamics and the risk of dengue transmission, with indoor and outdoor ovitrap placement locations as well as rainfall being major factors influencing monitoring data variations.
PLOS NEGLECTED TROPICAL DISEASES
(2021)
Article
Multidisciplinary Sciences
Wei-Ting Liu, Cheng-Chen Chen, Dar-Der Ji, Wu-Chun Tu
Summary: This study aimed to investigate whether the cecropin-prophenoloxidase regulatory mechanism is a cross-species physiological function among mosquitoes. The results showed that three mosquito cecropin Bs play crucial roles in cuticle formation during pupal development via the regulation of prophenoloxidase 3. The effects of cecropin B knockdown were rescued in a cross-species manner by injecting synthetic cecropin B peptide into pupae. Further investigations revealed that these cecropin B peptides bind to specific motifs within the PPO 3 DNA fragments obtained from the mosquitoes. These findings suggest the existence of similar cecropin-prophenoloxidase regulatory mechanisms in multiple mosquito species.
Article
Infectious Diseases
Christina Natalina Silalahi, Wu-Chun Tu, Niann-Tai Chang, G. Veera Singham, Intan Ahmad, Kok-Boon Neoh
Summary: Information on the insecticide resistance profiles of Aedes aegypti in Indonesia is limited. This study evaluated the resistance of Ae. aegypti to multiple insecticides in different regions of Indonesia and identified the possible resistance mechanisms. The results showed varying levels of resistance to pyrethroids in different locations and suggested the involvement of certain enzymes in conferring resistance. A rotation of insecticides and the use of insecticide mixtures were proposed as strategies to control Ae. aegypti populations in Indonesia.
PLOS NEGLECTED TROPICAL DISEASES
(2022)
Article
Veterinary Sciences
Hau-You Tzeng, Cheng-Lung Tsai, Lu-Jen Ting, Kuei-Min Liao, Wu-Chun Tu
Summary: This study aims to understand the epidemiological relationships of the akabane viruses between Taiwan and nearby places. The Taiwanese AKAVs belonged to genogroup Ia but diverged into two clusters in the phylogenetic trees, implying that at least two invasive events of AKAV may have occurred in Taiwan.
VETERINARY MEDICINE AND SCIENCE
(2022)
Article
Microbiology
Nian-Tong Ni, Sing-Shan Wu, Kuei-Min Liao, Wu-Chun Tu, Chuen-Fu Lin, Yu-Shin Nai
Summary: Forcipomyia taiwana is a nuisance blood-sucking pest to humans in Taiwan, and chemical pesticides are not effective against it, requiring alternative control methods. Two fungal isolates were found to have larvicidal and ovicidal activity against F. taiwana, impacting the emergence of adults.
Article
Parasitology
Wei-Ting Liu, Yi-Ju Chen, Cheng-Chen Chen, Kuei-Min Liao, Hau-You Tzeng, Wu-Chun Tu
Summary: This study confirms that Aedes albopictus, Armigeres subalbatus, and Culex quinquefasciatus can be infected with Japanese encephalitis virus (JEV), and the virus-positive rate increases with the number of days after infection. Furthermore, raising the temperature enhances JEV replication in the salivary gland of these mosquitoes, indicating a potential increase in the probability of JEV transmission.
Article
Virology
Chih-Ying Kuan, Tsai-Lu Lin, Shan-Chia Ou, Shih-Te Chuang, Jacky Peng-Wen Chan, Ken Maeda, Tetsuya Mizutani, Ming-Pin Wu, Fan Lee, Fang-Tse Chan, Chao-Chin Chang, Rui-Ling Liang, Sue-Fung Yang, Tsung-Ching Liu, Wu-Chun Tu, Hau-You Tzeng, Chia-Jung Lee, Chuen-Fu Lin, Hsu-Hsun Lee, Jhih-Hua Wu, Hsiao-Chien Lo, Kuan-Chieh Tseng, Wei-Li Hsu, Chi-Chung Chou
Summary: Since the discovery of SFTSV in China in 2009, it has quickly spread to other Asian countries. In 2020, Taiwan reported its first discovery of SFTSV in animals and humans. This study found a wide distribution and high prevalence of SFTSV in domestic animals and ticks in Taiwan. Sheep had the highest viral RNA prevalence, followed by beef cattle, goats, and dairy cows. The prevalence in ticks was similar to that in ruminants, but wild animals showed a much lower prevalence. The geographic distribution of positivity was fairly even across northern, central, southern, and eastern Taiwan.
Article
Entomology
Hau-You Tzeng, Lu-Jen Ting, Chin-Ing Chiu, Nien-Nung Lin, Kuei-Min Liao, Wu-Chun Tu
Summary: During 2012-2019, a total of 2,525 pools consisting of 108,937 vector specimens were tested for bovine arboviruses of the Orthobunyavirus, Orbivirus, and Ephemerovirus groups. Twelve virus RNAs, including 6 newly detected ones, were identified, including Shuni virus, Shamonda virus, and Sathuperi virus belonging to Orthobunyavirus, and Sathuvachari virus, as well as serotypes 4 and 7 of epizootic hemorrhagic disease virus, belonging to Orbivirus. Culicoides oxystoma, Culex tritaeniorhynchus, and Anopheles sinensis were identified as the main potential vector species in dairy farms in Taiwan based on the minimum infection rate and population abundance.
JOURNAL OF MEDICAL ENTOMOLOGY
(2023)
Article
Entomology
Jhih-Rong Liao, Yi-Hao Liao, Kuei-Min Liao, Huai-Hui Wu, Wu-Chun Tu, Ying-Hsi Lin
Summary: Ticks not only act as blood-sucking parasites, but they also play a crucial role in the transmission of tick-borne diseases, posing significant threats to public and animal health. This study conducted a nationwide survey in Taiwan to investigate tick infestations on domesticated animals. The results identified seven tick species, with high infestation rates and widespread distribution observed, especially on dogs and cattle. The findings shed light on the distribution and prevalence of ticks, providing valuable insights for controlling tick-borne diseases in Taiwan.
MEDICAL AND VETERINARY ENTOMOLOGY
(2023)
Article
Agronomy
Jhih-Rong Liao, Wu-Chun Tu, Ming-Chih Chiu, Mei-Hwa Kuo, Hui-Ching Cheng, Chia-Chun Chan, Shu-Mei Dai
Summary: Urbanization has had a significant impact on the distribution of dengue vectors, particularly Aedes aegypti mosquitoes. This study investigated the relationship between mosquito presence, building architectural features, and spatiotemporal factors in urban environments. The findings highlight the importance of considering the three-dimensional distribution of mosquitoes in urban planning and disease management strategies, and provide valuable insights for targeted interventions to mitigate the adverse effects of urbanization on public health.
PEST MANAGEMENT SCIENCE
(2023)