Mosquitoes that spread Zika virus could simultaneously transmit other viruses

Aedes aegypti, the primary mosquito that carries Zika virus, might also transmit chikungunya and dengue viruses with one bite, scientists report.
Source: ScienceDaily Headlines - Category: Science Source Type: news

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WEDNESDAY, July 17, 2019 -- Some mosquitoes spread diseases to humans through their bite, passing along harmful pathogens like Zika, dengue fever, West Nile virus and chikungunya. Now humans are turning the tables, infecting these dangerous...
Source: Drugs.com - Daily MedNews - Category: General Medicine Source Type: news
The present study shows that the most prominent human arboviruses worldwide (dengue viruses 1, 2, 3, and 4, Chikungunya virus, and Zika virus) can infect wild animals and jump from urban to sylvatic maintenance cycles in South America, as did the yellow fever virus in the past. All these viruses are transmitted by the anthropophilic mosquito Aedes aegypti and cause epidemics throughout Brazil. The yellow fever virus is the oldest example of an urban arbovirus that became sylvatic in South America. Currently, the disease is a zoonosis of non-human primates that moves like a wave through forests of the Brazilian countryside,...
Source: Frontiers in cellular and infection microbiology - Category: Microbiology Source Type: research
Abstract Mayaro virus (MAYV; family Togaviridae, genus Alphavirus) is an emerging global threat that can cause severe clinical manifestations similar to Zika, dengue, and chikungunya viruses. Currently, there is a lack of molecular tools to enable a better understanding of the transmission and pathogenesis of MAYV. Here, we detail the development and characterization of infectious clones of two strains of MAYV that produce infectious virus and replicate in mammalian and mosquito cells similarly to wild-type virus. Additionally, clone-derived viruses produced identical infection rates and phenotypes in CD-1 mice co...
Source: Virology - Category: Virology Authors: Tags: Virology Source Type: research
bel Arthropod-borne viruses (arboviruses) of vertebrates including dengue, zika, chikungunya, Rift Valley fever, and blue tongue viruses cause extensive morbidity and mortality in humans, agricultural animals, and wildlife across the globe. As obligate intercellular pathogens, arboviruses must be well adapted to the cellular and molecular environment of both their arthropod (invertebrate) and vertebrate hosts, which are vastly different due to hundreds of millions of years of separate evolution. Here we discuss the comparative pressures on arbovirus RNA genomes as a result of a dual host life cycle, focusing on pressur...
Source: Viruses - Category: Virology Authors: Tags: Review Source Type: research
Authors: Kim YH, Kim TY, Park JS, Park JS, Lee J, Moon J, Chong CK, Junior IN, Ferry FR, Ahn HJ, Bhatt L, Nam HW Abstract A rapid diagnostic test (RDT) kit was developed to detect non-structural protein 1 (NS1) of yellow fever virus (YFV) using monoclonal antibody. NS1 protein was purified from the cultured YFV and used to immunize mice. Monoclonal antibody to NS1 was selected and conjugated with colloidal gold to produce the YFV NS1 RDT kit. The YFV RDTs were evaluated for sensitivity and specificity using positive and negative samples of monkeys from Brazil and negative human blood samples from Korea. Among monoc...
Source: Korean Journal of Parasitology - Category: Parasitology Tags: Korean J Parasitol Source Type: research
Publication date: Available online 29 May 2019Source: International Journal of Pediatrics and Adolescent MedicineAuthor(s): Tracy Evans-GilbertAbstractChikungunya (CHIKV), Zika (ZIKV), and Dengue viruses (DENV) exhibit similar epidemiological and clinical patterns but have different pathophysiological mechanisms of disease manifestations. Differences occur in the severity of clinical presentations with the highest mortality in the general population attributed to DENV and neurological morbidity due to ZIKV. ZIKV and DENV infections can cause fetal loss with ZIKV exhibiting teratogenesis. CHIKV is associated with severe com...
Source: International Journal of Pediatrics and Adolescent Medicine - Category: Pediatrics Source Type: research
Aedes aegypti and Ae. albopictus are important vectors of infectious diseases, especially those caused by arboviruses such as dengue, chikungunya and Zika. Aedes aegypti is very well adapted to urban environments...
Source: Parasites and Vectors - Category: Microbiology Authors: Tags: Research Source Type: research
e;o G Abstract Guillain-Barre syndrome (GBS) is one of the main neurologic manifestations of arboviruses, especially Zika virus infection. As known, the prevalence of these diseases is high, so the risk of having an increase on GBS is relevant. The study purposes making a comparative survey between the involvement of dengue, Zika and chikungunya infections in the development of the GBS in Brazil, as well as search in literature resemblances and distinctions between beforehand reported cases. It was performed an electronic search in online databases, with articles published between the years of 2004 to 2018. A tota...
Source: Acta Tropica - Category: Infectious Diseases Authors: Tags: Acta Trop Source Type: research
by Spencer J. Fox, Steven E. Bellan, T. Alex Perkins, Michael A. Johansson, Lauren Ancel Meyers As emerging and re-emerging infectious arboviruses like dengue, chikungunya, and Zika threaten new populations worldwide, officials scramble to assess local severity and transmissibility, with little to no epidemiological history to draw upon. Indirect estimates of risk from vector habitat suitabi lity maps are prone to great uncertainty, while direct estimates from epidemiological data are only possible after cases accumulate and, given environmental constraints on arbovirus transmission, cannot be widely generalized beyond th...
Source: PLoS Neglected Tropical Diseases - Category: Tropical Medicine Authors: Source Type: research
by Fr édéric Jourdain, Abdallah M. Samy, Afrim Hamidi, Ali Bouattour, Bülent Alten, Chafika Faraj, David Roiz, Dušan Petrić, Elisa Pérez-Ramírez, Enkeledja Velo, Filiz Günay, Golubinka Bosevska, Ibrahim Salem, Igor Pajovic, Jelena Marić, Khalil Kanani, Lusine Paronyan, Maria-Grazia Dente, Marie P icard, Marija Zgomba, M'hammed Sarih, Nabil Haddad, Oleksandr Gaidash, Roena Sukhiasvili, Silvia Declich, Taher Shaibi, Tatiana Sulesco, Zoubir Harrat, Vincent Robert BackgroundThe Mediterranean Basin is historically a hotspot for trade, transport, and migration. As a result, countrie...
Source: PLoS Neglected Tropical Diseases - Category: Tropical Medicine Authors: Source Type: research
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