11th case of dengue fever confirmed in Florida Keys

The disease is transmitted through the bite of the female Aedes aegypti mosquito, an invasive species that also spreads diseases like yellow fever, Zika and chikungunya.
Source: Health News: CBSNews.com - Category: Consumer Health News Source Type: news

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In this study we measured IgG responses to al34k2 and to Ae. albopictus salivary gland protein extracts (SGE) in individuals naturally exposed to the tiger mosquito. Sera were collected in two areas of Northeast Italy (Padova and Belluno) during two different time periods: at the end of the low- and shortly after the high-density mosquito seasons. Anti-SGE and anti-al34k2 IgG levels increased after the summer period of exposure to mosquito bites and were higher in Padova as compared to Belluno. An age-dependent decrease of anti-saliva IgG responses was found especially in Padova, an area with at least 25 years history of A...
Source: Frontiers in cellular and infection microbiology - Category: Microbiology 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
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
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
The objective of the present study was to search for the regularities of the proteins expressed by these five viruses, at residues level, and obtain a " bioinformatic fingerprint " to select them.
Source: EurekAlert! - Infectious and Emerging Diseases - Category: Infectious Diseases Source Type: news
Conclusion: While participating EMR countries demonstrated good proficiency in detecting arboviruses, only half of them were enrolled in the global external quality assessment programme, providing an incomplete picture of regional capacity. Effort should be put into increasing participation in subsequent rounds. PMID: 32538457 [PubMed - in process]
Source: Eastern Mediterranean Health Journal - Category: Middle East Health Tags: East Mediterr Health J Source Type: research
On 15 April 2020, WHO received information regarding a confirmed case of yellow fever in Magandi village, Tchibanga city in Nyanga Province of southern Gabon, 590 km from the capital, Libreville. The case is an 83-year-old male with no known vaccination history for yellow fever. He had onset of symptoms on 30 January 2020 and presented to a health facility on 2 February 2020 with abdominal pain and jaundice. Between 2 February and 9 April, he consulted the Urban Health Centre in Tchibanga, the Christian Alliance Hospital in Bongolo and the University hospital in the capital Libreville where the case received anti-malarial ...
Source: WHO Disease Outbreaks - Category: Infectious Diseases Tags: news Source Type: news
by Kyran M. Staunton, Jacob E. Crawford, Devon Cornel, Peter Yeeles, Mark Desnoyer, Josh Livni, Jodi Holeman, F. Stephen Mulligan, Nigel Snoad, Scott A. Ritchie AsAedes aegypti continues to expand its global distribution, the diseases it vectors (dengue, Zika, chikungunya and yellow fever) are of increasing concern. Modern efforts to control this species include “rear and release” strategies where lab-reared mosquitoes are distributed throughout the landscape to replace or suppress invasive populations. These programs require intensive surveillance efforts to monitor their success, and the Biogents Sentinel (B...
Source: PLoS Neglected Tropical Diseases - Category: Tropical Medicine Authors: Source Type: research
ni FR Abstract The placenta works as a selective barrier, protecting the fetus from potential infections that may affect the maternal organism during pregnancy. In this review, we will discuss several challenging infections that are common within Latin American countries and that may affect the maternal-fetal interface and pose risks to fetal development. Specifically, we will focus on emerging infectious diseases including the arboviruses, malaria, leishmaniasis, and the bacterial foodborne disease caused by Shiga toxin-producing Escherichia coli. We will also highlight some topics of interest currently being stu...
Source: Systems Biology in Reproductive Medicine - Category: Reproduction Medicine Authors: Tags: Syst Biol Reprod Med Source Type: research
Abstract Aedes aegypti is the vector of important diseases like dengue, zika, chikungunya, and yellow fever. Vector control is pivotal in combating the spread of these mosquito-borne illnesses. Photoactivable larvicide curcumin obtained from Curcuma longa Linnaeus has shown high potential for Ae. aegypti larvae control. However, the toxicity of this photosensitizer (PS) might jeopardize non-target aquatic organisms. The aim of this study was to evaluate the toxicity of this PS to Daphnia magna and Danio rerio, besides assessing its mode of action through larvae biochemical and histological studies. Three PS formul...
Source: Environmental Science and Pollution Research International - Category: Environmental Health Authors: Tags: Environ Sci Pollut Res Int Source Type: research
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