cache valley virus
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2022 ◽  
Vol 28 (2) ◽  
Author(s):  
Constentin Dieme ◽  
Kiet A. Ngo ◽  
Shaun Tyler ◽  
Joseph G. Maffei ◽  
Steven D. Zink ◽  
...  

Author(s):  
Julian E. Garcia-Rejon ◽  
Juan-Carlos Navarro ◽  
Nohemi Cigarroa-Toledo ◽  
Carlos M. Baak-Baak

Aedes (Stegomyia) albopictus is a mosquito native to Southeast Asia. Currently, it has a wide distribution in America where natural infection with arboviruses of medical and veterinary importance has been reported. In spite of their importance in the transmission of endemic arbovirus, basic information of parameters affecting their vectorial capacity is poorly investigated. The aim of the work was to update the distribution range of Ae. albopictus in the Americas, review the blood-feeding patterns and compare the minimum infection rate (MIR) of the dengue virus (DENV) between studies of vertical and horizontal transmission. The current distribution of Ae. albopictus encompasses 21 countries in the Americas. Extensive review has been conducted for the blood-feeding patterns of Ae. albopictus. The results suggest that the mosquito is capable of feeding on 16 species of mammals and five species of avian. Humans, dogs, and rats are the most common host. Eight arboviruses with the potential to infect humans and animals have been isolated in Ae. albopictus. In the United States of America (USA), Eastern equine encephalitis virus, Keystone virus, La Crosse Virus, West Nile virus, and Cache Valley virus were isolated in the Asian mosquito. In Brazil, Mexico, Colombia, and Costa Rica, DENV (all serotypes) has been frequently identified in field-caught Ae. albopictus. Overall, the estimated MIR in Ae. albopictus infected with DENV is similar between horizontal (10.95) and vertical transmission (8.28). However, in vertical transmission, there is a difference in the MIR values if the DENV is identified from larvae or adults (males and females emerged from a collection of eggs or larvae). MIR estimated from larvae is 14.04 and in adults is 4.04. In conclusion, it has to be highlighted that Ae. albopictus is an invasive mosquito with wide phenotypic plasticity to adapt to broad and new areas, it is highly efficient to transmit the DENV horizontally and vertically, it can participate in the inter-endemic transmission of the dengue disease, and it can spread zoonotic arboviruses across forest and urban settings.


Author(s):  
Julian E. Garcia-Rejon ◽  
Juan Carlos Navarro ◽  
Nohemi Cigarroa-Toledo ◽  
Carlos M. Baak-Baak

The aim of the work was to update the distribution range of Aedes (Stegomyia) albopictus Skuse in the Americas, review the blood-feeding patterns and compare the minimum infection rate (MIR) of the dengue virus (DENV) between studies of vertical and horizontal transmission. The current dis-tribution of Ae. albopictus encompasses 21 countries in the Americas. Extensive review has been conducted for the blood-feeding patterns of Ae. albopictus. The results suggest that the mosquito is capable of feeding on 16 species of mammals and five species of avian. Humans, dogs, and rats are the most common host. Eight arboviruses with the potential to infect humans and animals have been isolated in Ae. albopictus. In the United States of America (USA), Eastern equine encephalitis virus, Keystone virus, La Crosse Virus, West Nile virus, and Cache Valley virus were isolated in the Asian mosquito. In Brazil, Mexico, Colombia, and Costa Rica, DENV (all serotypes) has been frequently identified in field-caught Ae. albopictus. Overall, the estimated MIR in Ae. albopictus infected with DENV is similar between horizontal (10.95) and vertical transmission (8.28). However, in vertical transmission, there is a difference in the MIR values if the DENV is identified from larvae or adults (males and females emerged from a collection of eggs or larvae). MIR es-timated from larvae is 14.04 and in adults is 4.04. In conclusion, it has to be highlighted that Ae. albopictus is an invasive mosquito with wide phenotypic plasticity to adapt to broad and new areas, it is highly efficient to transmit the DENV horizontally and vertically, it can participate in the inter-endemic transmission of the dengue disease, and it can spread zoonotic arboviruses across forest and urban settings.


Author(s):  
Krisangel López ◽  
Sarah N. Wilson ◽  
Sheryl Coutermash-Ott ◽  
Manette Tanelus ◽  
William B. Stone ◽  
...  

Author(s):  
Molly Baker ◽  
Holly R Hughes ◽  
S Hasan Naqvi ◽  
Karen Yates ◽  
Jason O Velez ◽  
...  

Abstract An adult male from Missouri sought care for fever, fatigue, and gastrointestinal symptoms. He had leukopenia and thrombocytopenia and was treated for a presumed tickborne illness. His condition deteriorated with respiratory and renal failure, lactic acidosis, and hypotension. Next-generation sequencing and phylogenetic analysis identified a reassortant Cache Valley virus.


2019 ◽  
Vol 56 (5) ◽  
pp. 1183-1187
Author(s):  
Roxanne Connelly

Abstract The theme of the 2018 Entomological Society of America, Entomological Society of Canada, and Entomological Society of British Columbia Joint Annual Meeting was Crossing Borders: Entomology in a Changing World. Following the theme of the meeting, papers selected for the 2018 ‘Highlights of Medical Entomology’ included reports of expanded ranges for Aedes albopictus (Skuse) (Diptera: Culicidae), Aedes japonicus japonicus (Theobald) (Diptera: Culicidae), Culex coronator Dyar and Knab (Diptera: Culicidae), Mansonia titillans (Walker) (Diptera: Culicidae), and Wyeomyia mitchellii (Theobald) (Diptera: Culicidae); a first report of mosquito feeding on earthworms and leeches; Cache Valley virus detection in Ae. j. japonicus; surveillance in high-risk areas of Canada for Lyme Disease; and increasing lone-star tick detections in Connecticut. The selection of papers served as a reminder of the increasingly difficult challenge of sustaining vector surveillance programs. Fluctuating funding and a decline in vector taxonomists and identification expertise contribute to the erosion of vector surveillance.


2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Victoria B. Ayers ◽  
Yan-Jang S. Huang ◽  
Amy C. Lyons ◽  
So Lee Park ◽  
James I. Dunlop ◽  
...  

2019 ◽  
Vol 66 (7) ◽  
pp. 739-758 ◽  
Author(s):  
Lisa Waddell ◽  
Nicole Pachal ◽  
Mariola Mascarenhas ◽  
Judy Greig ◽  
Shannon Harding ◽  
...  

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Jessica Harvey ◽  
Joseph Smith ◽  
Nicole Jackson ◽  
Amanda Kreuder ◽  
Tyler Dohlman ◽  
...  

2018 ◽  
Vol 11 (1) ◽  
Author(s):  
Victoria B. Ayers ◽  
Yan-Jang S. Huang ◽  
Amy C. Lyons ◽  
So Lee Park ◽  
Stephen Higgs ◽  
...  

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