Climate Change May Mean More Risky Mosquitoes

In the United States, where Zika cases have occurred in warmer areas in the last several years, dengue and chikungunya could also become wider threats, the study suggests.
Source: WebMD Health - Category: Consumer Health News Source Type: news

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After the outbreak in French Polynesia, Zika virus (ZIKV) explosive pandemic occurred in 2015, reports that ZIKV was linked to other diseases, especially neurological complications such as Guillain-Barré Syndrome (GBS), also burst in almost every continent, thereby turning into an international concern. In South America, the highest incidence occurred in Venezuela with approximately 680 cases of GBS after ZIKV infection. Currently, the main roots of this association remain unknown. In this regard, it is thought that the immune system plays a central role in such association through the host protection or even improv...
Source: Current Immunology Reviews - Category: Allergy & Immunology Source Type: research
Aedes aegypti is a primary vector of dengue, chikungunya and Zika infections in India. In the absence of specific drugs or safe and effective vaccines for these infections, their control relies mainly on vector c...
Source: Parasites and Vectors - Category: Microbiology Authors: Tags: Research Source Type: research
gari Alphaviruses are globally distributed and predominately transmitted by mosquitoes. Aedes species are common vectors for the clinically important alphaviruses—Chikungunya, Sindbis, and Ross River (RRV) viruses—with Aedes aegypti also being a vector for the flaviviruses dengue, Yellow Fever, and Zika viruses. Ae. aegypti was putatively implicated in the large 1979–1980 South Pacific Islands outbreak of RRV—the leading cause of arboviral disease in Australia today. The RNA interference (RNAi) defense response in mosquitoes involves a number of small RNAs, with their kinetics in...
Source: Viruses - Category: Virology Authors: Tags: Article Source Type: research
This study consists of the application of a community prevention project. Different surveys and methodological approaches were used. Associations between socio-environmental determinants and knowledge and practices for arboviruses transmission control were estimated by odds ratio. Logistic regression and qualitative techniques were used. Although around 75% of households had an adequate knowledge about arboviruses' origin and transmission, only 30% of them adopted adequate practices. Domestic risk practices were associated with serious deficiencies in water and sanitation services. Furthermore, a perception of greater risk...
Source: Cadernos de Saude Publica - Category: International Medicine & Public Health Authors: Tags: Cad Saude Publica Source Type: research
Chikungunya virus (CHIKV) is an arthropod-borne virus (arbovirus) of epidemic concern, transmitted by Aedes ssp. mosquitoes, and is the etiologic agent of a febrile and incapacitating arthritogenic illness responsible for millions of human cases worldwide. After major outbreaks starting in 2004, CHIKV spread to subtropical areas and western hemisphere coming from sub-Saharan Africa, South East Asia, and the Indian subcontinent. Even though CHIKV disease is self-limiting and non-lethal, more than 30% of the infected individuals will develop chronic disease with persistent severe joint pain, tenosynovitis, and incapacitating...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
Abstract Neglected tropical diseases are a serious global public health problem and they are one of the main causes of mortality and morbidity, especially in underdeveloped countries. These diseases have several implications for health and they are considered a priority in global eradication programs for disease control. The aim of this mini-review is to report recent studies on the fight against neglected diseases, namely dengue fever, chikungunya, zika, malaria protozoa, Chagas disease, leishmaniasis, schistosomiasis helminths, filariasis, and tuberculosis bacteria using extracts and isolated substances of endop...
Source: Mini Reviews in Medicinal Chemistry - Category: Chemistry Authors: Tags: Mini Rev Med Chem Source Type: research
In this study, the main constituent, the predominant class of essential oil extracted from the husks of Citrus limonia Osbeck was identified and evaluated to know if it has biological act...
Source: Journal of Medicinal Plants Research - Category: Complementary Medicine Source Type: research
This study aimed to investigate whether WSMoL could bind to membrane proteins from A. aegypti legs. Initially, proteins from the legs were extracted using sodium deoxycholate, digitonin, dodecyl sodium sulfate (SDS) or Triton X-100. The protein concentration was found to be higher in the extract obtained using Triton X-100, which was applied to a WSMoL-Sepharose column. The adsorbed proteins were evaluated using gel filtration chromatography and polyacrylamide gel electrophoresis (PAGE) in presence of SDS. The similarity in the sequences of adsorbed proteins with those available in databases was determined. The proteins ad...
Source: International Journal of Biological Macromolecules - Category: Biochemistry Authors: Tags: Int J Biol Macromol Source Type: research
aurício L. Nogueira Arthropod-borne viruses (arboviruses) of the genus Flavivirus are distributed globally and cause significant human disease and mortality annually. Flavivirus infections present a spectrum of clinical manifestations, ranging from asymptomatic to severe manifestations, including hemorrhage, encephalitis and death. Herein, we describe 3 case reports of cerebrovascular involvement in patients infected by dengue and Zika viruses in Sao Jose do Rio Preto, São Paulo State, Brazil, a hyperendemic area for arbovirus circulation, including dengue, yellow fever, chikungunya and Saint Louis en...
Source: Viruses - Category: Virology Authors: Tags: Article Source Type: research
by Natalie J. Lemanski, Samantha R. Schwab, Dina M. Fonseca, Nina H. Fefferman Emerging mosquito-borne viruses like Zika, dengue, and chikungunya pose a major threat to public health, especially in low-income regions of Central and South America, southeast Asia, and the Caribbean. Outbreaks of these diseases are likely to have long-term social and economic consequences due t o Zika-induced congenital microcephaly and other complications. Larval control of the container-inhabiting mosquitoes that transmit these infections is an important tool for mitigating outbreaks. However, metapopulation theory suggests that spatiotemp...
Source: PLoS Neglected Tropical Diseases - Category: Tropical Medicine Authors: Source Type: research
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