Results 51 to 60 of about 33,594 (191)

Transcriptional responses of Aedes aegypti chemosensory tissues in response to volatile DEET and citronella oil

open access: yesInsect Molecular Biology, EarlyView.
Aedes aegypti females were significantly repelled by both volatile DEET and citronella oil in comparison to control (ethanol‐exposed) mosquitoes. Global gene expression changes were largest in the mosquito mouthparts, with notable downregulation of the three subunits comprising the mosquito CO2 receptor (Gr1, 2 and 3).
Ivan Drahun   +3 more
wiley   +1 more source

Was It Chikungunya? Laboratorial and Clinical Investigations of Cases Occurred during a Triple Arboviruses’ Outbreak in Rio de Janeiro, Brazil

open access: yesPathogens, 2022
The co-circulation of chikungunya virus (CHIKV), dengue virus (DENV) and Zika virus (ZIKV) in Rio de Janeiro (RJ), Brazil, caused a challenging triple epidemic, as they share similar clinical signs and symptoms and geographical distribution.
Thiara Manuele Alves de Souza   +15 more
doaj   +1 more source

Preimaginal development of Aedes aegypti L. (Diptera: Culicidae) in brackish water gives rise to adult mosquitoes with thicker cuticles and greater insecticide resistance

open access: yesMedical and Veterinary Entomology, EarlyView.
The principal arboviral vector Aedes aegypti can develop in coastal brackish water field habitats (0.5–15 g/L salt) with larvae possessing thicker cuticles and greater resistance to the larvicide Temephos. Females emerging from brackish water‐developing preimaginal stages are now shown to have thicker and remodelled leg and abdominal cuticles and ...
Kokila Sivabalakrishnan   +6 more
wiley   +1 more source

High seroprevalence of IgM antibodies against chikungunya among patients with acute febrile illness seeking healthcare in a malaria-endemic area in the Afar Region, Northeast Ethiopia

open access: yesSAGE Open Medicine
Objective: Chikungunya is a disease caused by Aedes mosquito-borne chikungunya virus infection. This disease is becoming one of the emerging/re-emerging viral diseases in tropical and subtropical countries but is neglected by public health systems.
Biruk Zerfu   +4 more
doaj   +1 more source

Photodegradation of commercial insect repellents containing DEET and IR‐3535 under ultraviolet light associated or not with chemical ultraviolet filters evaluated by Raman spectroscopy

open access: yesPhotochemistry and Photobiology, EarlyView.
This study evaluated the photodegradation of commercial insect repellents containing DEET and IR‐3535 under UV‐A and UV‐B irradiation using Raman spectroscopy. Pure DEET and IR‐3535 showed intrinsic photostability, whereas DEET diluted in ethanol and a commercial DEET‐based formulation exhibited significant spectral changes after UV exposure.
Viviane Gadret Borio   +4 more
wiley   +1 more source

Ultraviolet Inactivation of Chikungunya Virus [PDF]

open access: yesIntervirology, 2018
<b><i>Objective:</i></b> Chikungunya virus (CHIKV) is a rapidly emerging arbovirus causing millions of infections in more than 40 countries. CHIKV is typically a biosafety level 3 pathogen in many countries and handling of CHIKV requires a high standard of laboratory safety settings.
Asha Maria, Mathew   +2 more
openaire   +2 more sources

Donor Dilemma: A National Simulation‐Based Case Curriculum for Teaching Donor Call Decision‐Making in Infectious Diseases Trainees

open access: yesTransplant Infectious Disease, EarlyView.
An asynchronous donor‐call case‐based progressive disclosure curriculum was feasible and valued across diverse ID and TID training programs. ID and TID trainees reported improved confidence in their clinical reasoning and ability to evaluate donor‐suitability, supporting this educational approach to address a training gap.
Robert Sean Tyler   +9 more
wiley   +1 more source

Evolution and Epidemiology of Chikungunya Virus

open access: yes, 2016
Chikungunya is a mosquito-borne Alphavirus that is spreading worldwide in the tropical areas and that has a 11.8 kb RNA genome. The most relevant vectors belong to the genus Aedes and contribute to the diffusion of the three different genotypes of the virus from the original site of first identification in East Africa.
Rossini, Giada   +2 more
openaire   +2 more sources

Endemic and Emerging Arboviruses of Mosquitoes in Ecuador

open access: yesPráctica Familiar Rural, 2020
Arboviruses are arthropod-borne viruses that include many viruses of public health concern found in Ecuador. Dengue virus, yellow fever virus and Zika virus are in the Flaviridae family (1), while chikungunya virus and Mayaro virus are in the ...
Rachel Sippy   +3 more
doaj   +1 more source

Diagnostic Accuracy of Real Time Reverse Transcriptase Polymerase Chain Reaction for Chikungunya Virus Detection: A Systematic Review and Meta‐Analysis

open access: yesTropical Medicine &International Health, EarlyView.
ABSTRACT Background Chikungunya virus (CHIKV) is an arbovirus that causes an acute febrile illness with intense muscle and joint pain, with the possibility of progressing to a chronic or neurological stage. We conducted a systematic review and meta‐analysis with the aim of evaluating the accuracy of real‐time reverse transcriptase polymerase chain ...
Róger J. Costa   +8 more
wiley   +1 more source

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