Open AccessPrevalence of respiratory viruses among adults, by season, age, respiratory tract region and type of medical unit in Paris, France, from 2011 to 2016
Author(s) -
Benoît Visseaux,
Charles Burdet,
Guillaume Voiriot,
François-Xavier Lescure,
Taous Chougar,
Olivier Brugière,
Bruno Crestani,
Enrique Casalino,
Charlotte Charpentier,
Diane Descamps,
JeanFrançois Timsit,
Yazdan Yazdanpanah,
Nadhira HouhouFidouh
Publication year - 2017
Publication title -
plos one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.99
H-Index - 332
ISSN - 1932-6203
DOI - 10.1371/journal.pone.0180888
Subject(s) - rhinovirus , respiratory tract infections , enterovirus , intensive care unit , respiratory tract , picornavirus , respiratory system , epidemiology , medicine , biology , human bocavirus , virology , immunology , pediatrics , virus , rna , biochemistry , gene
Background Multiplex PCR tests have improved our understanding of respiratory viruses’ epidemiology by allowing their wide range detection. We describe here the burden of these viruses in hospital settings over a five-year period. Methods All respiratory samples from adult patients (>20 years old) tested by multiplex-PCR at the request of physicians, from May 1 2011 to April 30 2016, were included retrospectively. Viral findings are reported by season, patient age group, respiratory tract region (upper or lower) and type of clinical unit (intensive care unit, pneumology unit, lung transplantation unit and other medical units). Results In total, 7196 samples (4958 patients) were included; 29.2% tested positive, with viral co-infections detected in 1.6% of samples. Overall, two viral groups accounted for 60.2% of all viruses identified: picornaviruses (rhinovirus or enterovirus, 34.3%) and influenza (26.6%). Influenza viruses constituted the group most frequently identified in winter (34.4%), in the upper respiratory tract (32%) and in patients over the age of 70 years (36.4%). Picornavirus was the second most frequently identified viral group in these populations and in all other groups, including lower respiratory tract infections (41.3%) or patients in intensive care units (37.6%). Conclusion This study, the largest to date in Europe, provides a broad picture of the distribution of viruses over seasons, age groups, types of clinical unit and respiratory tract regions in the hospital setting. It highlights the burden associated with the neglected picornavirus group. These data have important implications for the future development of vaccines and antiviral drugs.