Detection of Viral RNA in Tissues following Plasma Clearance from an Ebola Virus Infected Patient

Mirella Biava, Claudia Caglioti, Licia Bordi, Concetta Castilletti, Francesca Colavita, Serena Quartu, Emanuele Nicastri, Francesco Nicola Lauria, Nicola Petrosillo, Simone Lanini, Thomas Hoenen, Gary Kobinger, Alimuddin Zumla, Antonino Di Caro, Giuseppe Ippolito, Maria Rosaria Capobianchi, Eleonora Lalle

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9 Citations (Scopus)

Abstract

An unprecedented Ebola virus (EBOV) epidemic occurred in 2013–2016 in West Africa. Over this time the epidemic exponentially grew and moved to Europe and North America, with several imported cases and many Health Care Workers (HCW) infected. Better understanding of EBOV infection patterns in different body compartments is mandatory to develop new countermeasures, as well as to fully comprehend the pathways of human-to-human transmission. We have longitudinally explored the persistence of EBOV-specific negative sense genomic RNA (neg-RNA) and the presence of positive sense RNA (pos-RNA), including both replication intermediate (antigenomic-RNA) and messenger RNA (mRNA) molecules, in the upper and lower respiratory tract, as compared to plasma, in a HCW infected with EBOV in Sierra Leone, who was hospitalized in the high isolation facility of the National Institute for Infectious Diseases “Lazzaro Spallanzani” (INMI), Rome, Italy. We observed persistence of pos-RNA and neg-RNAs in longitudinally collected specimens of the lower respiratory tract, even after viral clearance from plasma, suggesting possible local replication. The purpose of the present study is to enhance the knowledge on the biological features of EBOV that can contribute to the human-to-human transmissibility and to develop effective intervention strategies. However, further investigation is needed in order to better understand the clinical meaning of viral replication and shedding in the respiratory tract.

Original languageEnglish
Article numbere1006065
JournalPLoS Pathogens
Volume13
Issue number1
DOIs
Publication statusPublished - Jan 1 2017

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Ebolavirus
Viral RNA
RNA
Respiratory System
Ebola Hemorrhagic Fever
Sierra Leone
Virus Shedding
Delivery of Health Care
Western Africa
North America
Italy
Communicable Diseases
Messenger RNA

ASJC Scopus subject areas

  • Parasitology
  • Microbiology
  • Immunology
  • Molecular Biology
  • Genetics
  • Virology

Cite this

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abstract = "An unprecedented Ebola virus (EBOV) epidemic occurred in 2013–2016 in West Africa. Over this time the epidemic exponentially grew and moved to Europe and North America, with several imported cases and many Health Care Workers (HCW) infected. Better understanding of EBOV infection patterns in different body compartments is mandatory to develop new countermeasures, as well as to fully comprehend the pathways of human-to-human transmission. We have longitudinally explored the persistence of EBOV-specific negative sense genomic RNA (neg-RNA) and the presence of positive sense RNA (pos-RNA), including both replication intermediate (antigenomic-RNA) and messenger RNA (mRNA) molecules, in the upper and lower respiratory tract, as compared to plasma, in a HCW infected with EBOV in Sierra Leone, who was hospitalized in the high isolation facility of the National Institute for Infectious Diseases “Lazzaro Spallanzani” (INMI), Rome, Italy. We observed persistence of pos-RNA and neg-RNAs in longitudinally collected specimens of the lower respiratory tract, even after viral clearance from plasma, suggesting possible local replication. The purpose of the present study is to enhance the knowledge on the biological features of EBOV that can contribute to the human-to-human transmissibility and to develop effective intervention strategies. However, further investigation is needed in order to better understand the clinical meaning of viral replication and shedding in the respiratory tract.",
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AU - Biava, Mirella

AU - Caglioti, Claudia

AU - Bordi, Licia

AU - Castilletti, Concetta

AU - Colavita, Francesca

AU - Quartu, Serena

AU - Nicastri, Emanuele

AU - Lauria, Francesco Nicola

AU - Petrosillo, Nicola

AU - Lanini, Simone

AU - Hoenen, Thomas

AU - Kobinger, Gary

AU - Zumla, Alimuddin

AU - Di Caro, Antonino

AU - Ippolito, Giuseppe

AU - Capobianchi, Maria Rosaria

AU - Lalle, Eleonora

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