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2 results on '"Yaye Die Ndiaye"'

1. Serological Data Shows Low Levels of Chikungunya Exposure in Senegalese Nomadic Pastoralists

Author

Mame Cheikh Seck, Aida Sadikh Badiane, Julie Thwing, Delynn Moss, Fatou Ba Fall, Jules Francois Gomis, Awa Bineta Deme, Khadim Diongue, Mohamed Sy, Aminata Mbaye, Tolla Ndiaye, Aminata Gaye, Yaye Die Ndiaye, Mamadou Alpha Diallo, Daouda Ndiaye, and Eric Rogier

Subjects
serology, chikungunya, seroprevalence, nomadic pastoralists, Senegal, multiplex bead assay, Medicine
Abstract

The chikungunya virus (CHIKV) is spread by Aedes aegypti and Ae. albopictus mosquitos worldwide; infection can lead to disease including joint pain, fever, and rash, with some convalescent persons experiencing chronic symptoms. Historically, CHIKV transmission has occurred in Africa and Asia, but recent outbreaks have taken place in Europe, Indonesia, and the Americas. From September to October 2014, a survey was undertaken with nomadic pastoralists residing in the northeast departments of Senegal. Blood dried on filter paper (dried blood spots; DBS) were collected from 1465 participants of all ages, and assayed for Immunoglobulin G (IgG) antibodies against CHIKV E1 antigen by a bead-based multiplex assay. The overall seroprevalence of all participants to CHIKV E1 was 2.7%, with no persons under 10 years of age found to be antibody positive. Above 10 years of age, clear increases of seroprevalence and IgG levels were observed with increasing age; 7.6% of participants older than 50 years were found to be positive for anti-CHIKV IgG. Reported net ownership, net usage, and gender were all non-significant explanatory variables of seropositivity. These data show a low-level historical exposure of this pastoralist population to CHIKV, with no evidence of recent CHIKV transmission in the past decade.

Published
2019
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2. Serological Data Shows Low Levels of Chikungunya Exposure in Senegalese Nomadic Pastoralists

Author

Mamadou Alpha Diallo, Aminata Mbaye, Eric Rogier, Aida Sadikh Badiane, Tolla Ndiaye, Khadim Diongue, Delynn M. Moss, Yaye Die Ndiaye, Awa B. Deme, Fatou Ba Fall, Mame Cheikh Seck, Aminata Gaye, Daouda Ndiaye, Mohamed Sy, Jules F. Gomis, and Julie Thwing

Subjects
Microbiology (medical), chikungunya, viruses, Population, education, serology, lcsh:Medicine, Aedes aegypti, medicine.disease_cause, Article, Serology, parasitic diseases, medicine, Immunology and Allergy, Seroprevalence, Chikungunya, nomadic pastoralists, Molecular Biology, multiplex bead assay, education.field_of_study, General Immunology and Microbiology, biology, seroprevalence, Transmission (medicine), business.industry, fungi, lcsh:R, Outbreak, virus diseases, biology.organism_classification, Rash, Senegal, Infectious Diseases, medicine.symptom, business, Demography
Abstract

The chikungunya virus (CHIKV) is spread by Aedes aegypti and Ae. albopictus mosquitos worldwide, infection can lead to disease including joint pain, fever, and rash, with some convalescent persons experiencing chronic symptoms. Historically, CHIKV transmission has occurred in Africa and Asia, but recent outbreaks have taken place in Europe, Indonesia, and the Americas. From September to October 2014, a survey was undertaken with nomadic pastoralists residing in the northeast departments of Senegal. Blood dried on filter paper (dried blood spots, DBS) were collected from 1465 participants of all ages, and assayed for Immunoglobulin G (IgG) antibodies against CHIKV E1 antigen by a bead-based multiplex assay. The overall seroprevalence of all participants to CHIKV E1 was 2.7%, with no persons under 10 years of age found to be antibody positive. Above 10 years of age, clear increases of seroprevalence and IgG levels were observed with increasing age, 7.6% of participants older than 50 years were found to be positive for anti-CHIKV IgG. Reported net ownership, net usage, and gender were all non-significant explanatory variables of seropositivity. These data show a low-level historical exposure of this pastoralist population to CHIKV, with no evidence of recent CHIKV transmission in the past decade.

Published
2019

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