Sand Fly–Associated Phlebovirus with Evidence of Neutralizing Antibodies in Humans, Kenya

We describe a novel virus, designated Ntepes virus (NPV), isolated from sand flies in Kenya. NPV has the characteristic phlebovirus trisegmented genome architecture and is related to, but distinct from, Gabek Forest phlebovirus. Diverse cell cultures derived from wildlife, livestock, and humans were...

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Main Authors: David P. Tchouassi, Marco Marklewitz, Edith Chepkorir, Florian Zirkel, Sheila B. Agha, Caroline C. Tigoi, Edith Koskei, Christian Drosten, Christian Borgemeister, Baldwyn Torto, Sandra Junglen, Rosemary Sang
Format: Article
Language:English
Published: Centers for Disease Control and Prevention 2019-04-01
Series:Emerging Infectious Diseases
Subjects:
Online Access:https://wwwnc.cdc.gov/eid/article/25/4/18-0750_article
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author David P. Tchouassi
Marco Marklewitz
Edith Chepkorir
Florian Zirkel
Sheila B. Agha
Caroline C. Tigoi
Edith Koskei
Christian Drosten
Christian Borgemeister
Baldwyn Torto
Sandra Junglen
Rosemary Sang
author_facet David P. Tchouassi
Marco Marklewitz
Edith Chepkorir
Florian Zirkel
Sheila B. Agha
Caroline C. Tigoi
Edith Koskei
Christian Drosten
Christian Borgemeister
Baldwyn Torto
Sandra Junglen
Rosemary Sang
author_sort David P. Tchouassi
collection DOAJ
description We describe a novel virus, designated Ntepes virus (NPV), isolated from sand flies in Kenya. NPV has the characteristic phlebovirus trisegmented genome architecture and is related to, but distinct from, Gabek Forest phlebovirus. Diverse cell cultures derived from wildlife, livestock, and humans were susceptible to NPV, with pronounced permissiveness in swine and rodent cells. NPV infection of newborn mice caused rapid and fatal illness. Permissiveness for NPV replication in sand fly cells, but not mosquito cells, suggests a vector-specific adaptation. Specific neutralizing antibodies were found in 13.9% (26/187) of human serum samples taken at the site of isolation of NPV as well as a disparate site in northeastern Kenya, suggesting a wide distribution. We identify a novel human-infecting arbovirus and highlight the importance of rural areas in tropical Africa for arbovirus surveillance as well as extending arbovirus surveillance to include hematophagous arthropods other than mosquitoes.
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spelling doaj.art-b21ae79b2f94408296c97d9427d9a0472022-12-22T00:53:01ZengCenters for Disease Control and PreventionEmerging Infectious Diseases1080-60401080-60592019-04-0125468169010.3201/eid2504.180750Sand Fly–Associated Phlebovirus with Evidence of Neutralizing Antibodies in Humans, KenyaDavid P. TchouassiMarco MarklewitzEdith ChepkorirFlorian ZirkelSheila B. AghaCaroline C. TigoiEdith KoskeiChristian DrostenChristian BorgemeisterBaldwyn TortoSandra JunglenRosemary SangWe describe a novel virus, designated Ntepes virus (NPV), isolated from sand flies in Kenya. NPV has the characteristic phlebovirus trisegmented genome architecture and is related to, but distinct from, Gabek Forest phlebovirus. Diverse cell cultures derived from wildlife, livestock, and humans were susceptible to NPV, with pronounced permissiveness in swine and rodent cells. NPV infection of newborn mice caused rapid and fatal illness. Permissiveness for NPV replication in sand fly cells, but not mosquito cells, suggests a vector-specific adaptation. Specific neutralizing antibodies were found in 13.9% (26/187) of human serum samples taken at the site of isolation of NPV as well as a disparate site in northeastern Kenya, suggesting a wide distribution. We identify a novel human-infecting arbovirus and highlight the importance of rural areas in tropical Africa for arbovirus surveillance as well as extending arbovirus surveillance to include hematophagous arthropods other than mosquitoes.https://wwwnc.cdc.gov/eid/article/25/4/18-0750_articlearbovirusphlebovirussandfliesvirus discoveryKenyaviruses
spellingShingle David P. Tchouassi
Marco Marklewitz
Edith Chepkorir
Florian Zirkel
Sheila B. Agha
Caroline C. Tigoi
Edith Koskei
Christian Drosten
Christian Borgemeister
Baldwyn Torto
Sandra Junglen
Rosemary Sang
Sand Fly–Associated Phlebovirus with Evidence of Neutralizing Antibodies in Humans, Kenya
Emerging Infectious Diseases
arbovirus
phlebovirus
sandflies
virus discovery
Kenya
viruses
title Sand Fly–Associated Phlebovirus with Evidence of Neutralizing Antibodies in Humans, Kenya
title_full Sand Fly–Associated Phlebovirus with Evidence of Neutralizing Antibodies in Humans, Kenya
title_fullStr Sand Fly–Associated Phlebovirus with Evidence of Neutralizing Antibodies in Humans, Kenya
title_full_unstemmed Sand Fly–Associated Phlebovirus with Evidence of Neutralizing Antibodies in Humans, Kenya
title_short Sand Fly–Associated Phlebovirus with Evidence of Neutralizing Antibodies in Humans, Kenya
title_sort sand fly associated phlebovirus with evidence of neutralizing antibodies in humans kenya
topic arbovirus
phlebovirus
sandflies
virus discovery
Kenya
viruses
url https://wwwnc.cdc.gov/eid/article/25/4/18-0750_article
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