Differential response to plant- and human-derived odorants in field surveillance of the dengue vector, Aedes aegypti.

Differential response to plant- and human-derived odorants in field surveillance of the dengue vector, Aedes aegypti. Acta Trop. 2019 Sep 05;:105163 Authors: Omondi WP, Owino EA, Odongo D, Mwangangi JM, Torto B, Tchouassi DP Abstract Linalool oxide (LO) and hexanoic acid (HA) represent plant- and human-derived odorants, respectively, previously found as attractants for the dengue vector Aedes aegypti. Here, we investigated if a blend of both compounds can improve captures of this mosquito species in field trials in two dengue endemic sites, Kilifi and Busia Counties in Kenya. Ae. aegypti captures were significantly higher in Kilifi than Busia (χ21,142=170.63, P
Source: Acta Tropica - Category: Infectious Diseases Authors: Tags: Acta Trop Source Type: research

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ConclusionsThe present study found that there was a high prevalence of severe malaria among patients withPlasmodium and DENV co-infection. Physicians in endemic areas where these two diseases overlap should recognize that patients with this co-infection can develop either severe malaria or severe dengue with bleeding complications, but a greater risk of developing severe dengue than severe malaria was noted in patients with this co-infection.Trial registrationThe protocol of this study was registered at PROSPERO:CRD42020196792.
Source: Infectious Diseases of Poverty - Category: Infectious Diseases Source Type: research
Intercultural bilingual school at Andahuaylas province, Peru. Photo courtesy Sergio Chaparro Hernández (CESR) By Laura Adriaensens and Sergio Chaparro HernándezANTWERP, Belgium / BOGOTA, Colombia, Sep 11 2020 (IPS) “It’s a major paradox, no?” asks Hugo Ñopo, a researcher at the Peruvian think tank Group for the Analysis of Development (GRADE). Since the beginning of the pandemic, Peru has presented itself as an example for the region: it quickly implemented drastic prevention measures, followed scientific recommendations and prepared an economic support plan for the most vulnerable se...
Source: IPS Inter Press Service - Health - Category: International Medicine & Public Health Authors: Tags: Development & Aid Editors' Choice Featured Global Headlines Health Human Rights IPS UN: Inside the Glasshouse Latin America & the Caribbean Population Poverty & SDGs Source Type: news
Abstract Mosquito borne diseases are a group of infections that affect humans. Emerging or reemerging diseases are those that (re)occur in regions, groups or hosts that were previously free from these diseases: dengue virus; chikungunya virus; Zika virus; West Nile fever and malaria. In Europe, these infections are mostly imported; however, due to the presence of competent mosquitoes and the number of trips both to and from endemic areas, these pathogens are potentially emergent or re-emergent. Present and future climatic conditions, as well as meteorological, environmental and demographic aspects are risk factors...
Source: Environmental Research - Category: Environmental Health Authors: Tags: Environ Res Source Type: research
Abstract Plasmodium infections are co-endemic with infections caused by other agents of acute febrile illnesses, such as dengue virus (DENV), chikungunya virus, Leptospira spp., and Orientia tsutsugamushi. However, co-infections may influence disease severity, treatment outcomes, and development of drug resistance. When we analyzed cases of acute febrile illness at the All India Institute of Medical Sciences, New Delhi, India, from July 2017 through September 2018, we found that most patients with malaria harbored co-infections (Plasmodium mixed species and other pathogens). DENV was the most common malaria co-inf...
Source: Emerging Infectious Diseases - Category: Infectious Diseases Authors: Tags: Emerg Infect Dis Source Type: research
Authors: Shah S, Abbas G, Riaz N, Anees Ur Rehman, Hanif M, Rasool MF Abstract BACKGROUND: Communicable diseases such as AIDS/HIV, dengue fever and malaria have a great burden and subsequent economic loss in the Asian region. The purpose of this article is to review the widespread burden of communicable diseases and related health care burden for the patient in Asia and the Pacific. AREAS COVERED: In Central Asia, the number of new AIDS cases increased by 29%. It is more endemic in the poor population with variations is cost of illness. Dengue is prevalent in more than 100 countries, including the Asia-Pacific ...
Source: Expert Review of Pharmacoeconomics and Outcomes Research - Category: Health Management Tags: Expert Rev Pharmacoecon Outcomes Res Source Type: research
by Catherine H ébert, Christian Dagenais, Esther Mc Sween-Cadieux, Valéry Ridde BackgroundThe dengue virus is endemic in many low- and middle-income countries. In Burkina Faso, the proportion of fevers that could be due to dengue is growing. In 2013, a dengue epidemic spread there, followed by other seasonal outbreaks. Dengue is often confused with malaria, and health workers are not trained to distinguish between them. Three training videos using different narrative genres were tested with nursing students from two institutions in Ouagadougou: journalistic, dramatic and animated video. The study aimed to det...
Source: PLoS Neglected Tropical Diseases - Category: Tropical Medicine Authors: Source Type: research
Abstract Despite centuries of enormous control efforts, mosquito-borne diseases continue to show upward trend of morbidity. According to WHO reports, malaria caused 438000 deaths in the year 2015 and dengue cases has been increased 30-fold over the last five decades. To control these diseases, it is necessary to understand the transmission dynamics of them among mosquitoes. There are some vertically transmitted mosquito-borne diseases which can also be spread among mosquitoes through sexual contact (e.g., dengue, zika, chikungunya). Recent experimental observations indicate that for virus persistence in mosquito p...
Source: Mathematical Biosciences - Category: Statistics Authors: Tags: Math Biosci Source Type: research
Publication date: Available online 22 April 2020Source: Clinical Epidemiology and Global HealthAuthor(s): Vineet Jain, Khan Afreen, Richa Garg, Arushi Chopra, Diksha Gaur, Varun Kumar Kashyap, Sunil Kohli, Kanupriya Bajaj
Source: Clinical Epidemiology and Global Health - Category: Epidemiology Source Type: research
This study was aimed at developing an antibody-based assay using a chiemric antigen containing multi-B-cell epitopes from antigens highly expressed in different stages of Wuchereria bancrofti to detect LF infection and its transmission. The antigen was express cloned and two indirect ELISA based (IgG1 &IgG4 based) antibody assays were developed using the recombinant antigen. The chimeric antigen displayed 1 and 3-fold reactivity with IgG1 and IgG4 antibodies, respectively in microfilaraial (mf) positive sera when compared to that in sera samples of Non-endemic normal sera (NEN) (O.D, 0.13 ± 0.20 and 0....
Source: International Immunopharmacology - Category: Allergy & Immunology Authors: Tags: Int Immunopharmacol Source Type: research
Conclusions/SignificanceViroTrack Dengue Acute is a sensitive and specific assay for DENV NS1 detection. It provides faster results than the ELISA method and a better performance than the rapid immunochromatographic tests. ViroTrack Dengue Acute could represent a valuable tool for rapid diagnosis of DENV infections in returning travellers from endemic countries.
Source: PLoS Neglected Tropical Diseases - Category: Tropical Medicine Authors: Source Type: research
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