AI Article Synopsis
- A serosurvey in Senegal from 2020-2023 examined chikungunya virus (CHIKV) exposure in fruit bats.
- Out of 671 bats tested, 13.3% showed exposure to CHIKV IgG, with the highest rates found in Eidolon helvum (18.3%) and Epomophorus gambianus (13.7%).
- The findings indicate that these bat species are naturally exposed to the chikungunya virus.
Article Abstract
We conducted a cross-sectional serosurvey for chikungunya virus (CHIKV) exposure in fruit bats in Senegal during 2020-2023. We found that 13.3% (89/671) of bats had CHIKV IgG; highest prevalence was in Eidolon helvum (18.3%, 15/82) and Epomophorus gambianus (13.7%, 63/461) bats. Our results suggest these bats are naturally exposed to CHIKV.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11210635 | PMC |
| http://dx.doi.org/10.3201/eid3007.240055 | DOI Listing |
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Article Synopsis
- A serosurvey in Senegal from 2020-2023 examined chikungunya virus (CHIKV) exposure in fruit bats.
- Out of 671 bats tested, 13.3% showed exposure to CHIKV IgG, with the highest rates found in Eidolon helvum (18.3%) and Epomophorus gambianus (13.7%).
- The findings indicate that these bat species are naturally exposed to the chikungunya virus.
Dynamics of chikungunya virus transmission in the first year after its introduction in Brazil: A cohort study in an urban community.
PLoS Negl Trop Dis
December 2023
Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil.
Background: The first chikungunya virus (CHIKV) outbreaks during the modern scientific era were identified in the Americas in 2013, reaching high attack rates in Caribbean countries. However, few cohort studies have been performed to characterize the initial dynamics of CHIKV transmission in the New World.
Methodology/principal Findings: To describe the dynamics of CHIKV transmission shortly after its introduction in Brazil, we performed semi-annual serosurveys in a long-term community-based cohort of 652 participants aged ≥5 years in Salvador, Brazil, between Feb-Apr/2014 and Nov/2016-Feb/2017.
Seroprevalence of dengue virus infection in Pune City in India, 2019: A decadal change.
J Infect Public Health
November 2023
Epidemiology Group, ICMR-National Institute of Virology, Pune 411021, India. Electronic address:
Background: The burden of dengue infection needs to be monitored along with tracking of the changes in dengue virus (DENV) transmission intensity for vaccine introduction decisions.
Methods: The seroprevalence of dengue was investigated in Pune City in India, in early 2019 using 1654 sera from apparently healthy human participants enrolled randomly through multistage cluster sampling. We used 797 retrospective human sera from late 2009 for comparison.
Seroprevalence of IgG Antibodies Directed against Dengue, Chikungunya and West Nile Viruses and Associated Risk Factors in Madagascar, 2011 to 2013.
Viruses
August 2023
Virology Unit, Institut Pasteur de Madagascar, Antananarivo 101, Madagascar.
Arboviruses have been shown to circulate in Madagascar, including West Nile, dengue, and chikungunya viruses, though the extent of their circulation remains poorly documented. We estimated the seroprevalence of these three arboviruses in Madagascar and determined risk factors associated with seropositivity. Serum samples obtained from 1680 individuals surrounding the Sentinel Health Centers network in all regions of the country were analyzed using ELISA and hemagglutination inhibition assays for dengue, chikungunya, and West Nile viruses IgG antibodies, and multivariate logistic regression models were run.
View Article and Find Full Text PDFSeroprevalence of Dengue, Chikungunya and Zika at the epicenter of the congenital microcephaly epidemic in Northeast Brazil: A population-based survey.
PLoS Negl Trop Dis
July 2023
Department of Virology, Institute Aggeu Magalhães, Oswaldo Cruz Foundation, Recife, Pernambuco, Brazil.
Background: The four Dengue viruses (DENV) serotypes were re-introduced in Brazil's Northeast region in a couple of decades, between 1980's and 2010's, where the DENV1 was the first detected serotype and DENV4 the latest. Zika (ZIKV) and Chikungunya (CHIKV) viruses were introduced in Recife around 2014 and led to large outbreaks in 2015 and 2016, respectively. However, the true extent of the ZIKV and CHIKV outbreaks, as well as the risk factors associated with exposure to these viruses remain vague.
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