Health officials say they discovered Aedes aegypti mosquitoes – known to carry Zika virus and dengue – in York County, Nebraska, on Tuesday . It’s the first time they’ve been seen in the state.
DiscussionChikungunya outbreaks have been reported in the study area in the past, so the high seroprevalence is not surprising. However, scarce evidence exists on dengue transmission in Kinshasa and based on our data, circulation is more important than previously reported. Furthermore, our study shows that the prescription of antibiotics, both antibacterial and antimalarial drugs, is rampant. Studies like this one, elucidating the causes of acute fever, may lead to a more considerate and rigorous use of antibiotics. This will not only stem the ever-increasing problem of antimicrobial resistance, but will –ultimately …
A Danish and Taiwanese company has won Australiaâs Good Design Award for a portable diagnostic deviceâsmall enough to fit in a camera caseâthat allows diagnosis of infectious diseases on the spot from a single drop of blood.
âThe Good Design Award ranked BluBox as the best solution for the rapid and accurate assessment of communicable diseases in heavily populated as well as resource-constrained, expertise-lacking areas,â explained Filippo Bosco, CEO and one of the three founders of BluSense Diagnostics (Copenhagen).
The secret inside…
Publication date: Available online 28 August 2019Source: Pesticide Biochemistry and PhysiologyAuthor(s): Annamalai Thanigaivel, Kanagaraj Muthu-Pandian Chanthini, Sengodan Karthi, Prabhakaran Vasantha-Srinivasan, Athirstam Ponsankar, Haridoss Sivanesh, Vethamonickam Stanley-Raja, Narayanan Shyam-Sundar, Kilapavoor Raman Narayanan, Sengottayan Senthil-NathanAbstractAedes aegypti is a major mosquito vector that can transfer many deadly diseases such as dengue, chikungunya, Zika, and yellow fever viruses. Due to the developing resistance among the vector populations by the application of chemical insecticides, alternative eco…
Improved surveillance techniques are required to accelerate efforts against major arthropod-borne diseases such as malaria, dengue, filariasis, Zika and yellow-fever. Light-emitting diodes (LEDs) are increasin…
Publication date: Available online 16 August 2019Source: MicronAuthor(s): Lilian Mirian Oliveira de Morais, Eduardo Inocente Jussiani, João Antonio Cyrino Zequi, Paulo José dos Reis, Avacir Casanova AndrelloAbstractAedes aegypti and Aedes albopictus are vectors of several arboviruses responsible for causing dengue, chikungunya, Zika, and yellow fever viruses and microcephaly, resulting in a public health problem in several countries worldwide. Even in this scenario, studies on the morphology of mosquito eggs are still lacking. In this paper, X-ray microtomography was used to study mosquito egg morphology. Sev…
CONCLUSIONS: The co-circulation of those viruses in the same area represents a risk for the development of severe infections if they spread throughout the country. Successive flavivirus infections may have an impact on disease pathogenesis, as well as on the development of safe vaccine strategies.
PMID: 31411310 [PubMed – in process]
Source: World Health Organization (WHO). Published: 8/14/2019.
This 25-minute video features live responses from an expert to questions about dengue, which is transmitted through Aedes aegypti and Aedes Albopictus mosquitoes, also known as Asian tiger mosquitoes. These are the same mosquitoes that transmit chikungunya, yellow fever, and Zika. Topics include identifying the warning signs and symptoms of severe dengue, and complications caused by dengue.
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Conclusions/SignificanceThe two barriers associated withAe.aegypti midgut prevent YFV-17D replication. Our study contributes to our basic understanding of vector –pathogen interactions and may also aid in the development of non-transmissible live virus vaccines.
Dengue is an important arboviral infection that affects about 40% of the world population. It is found mainly in topical and subtropical areas of the world mainly in developing countries but it range is spreading including the United States. A review of common arboviruses can be found here. It is a flaviavirus with 4 distinct serotypes named DENV-1 through DENV-4 and is spread by A. aegypti a day biting mosquito. Infection with one serotype confers immunity to that serotype but not the others. It does offer some protection for cross-infection but this only lasts a few months. Incubation period is 3-14 days with …
Date: August 26, 2019
Use of insect repellents is strongly recommended by the
Centers for Disease Control and Prevention (CDC) and
the Environmental Protection Agency (EPA) to prevent
infections transmitted by mosquitoes and ticks. Insect
repellents applied to exposed skin should be used in
conjunction with other preventive measures such as
wearing pants and long-sleeved shirts, and avoiding
outdoor activities during peak mosquito-biting times.
Mosquitoes can transmit Zika, chikungunya, dengue,
West Nile, eastern equine encephalitis, and yellow fever
viruses, as well as…