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Non-influenza respiratory viruses in adult patients admitted with influenza-like illness a 3-year prospective multicenter study

François Benezit 1 Paul Loubet 2, 3 Florence Galtier 4, 2 Charlotte Pronier 1 Nezha Lenzi 2, 3 Zineb Lesieur 3, 5 Stéphane Jouneau 6, 1 Gisèle Lagathu 1 Anne-Sophie l'Honneur 7 Vincent Foulongne 8 Christine Vallejo 9 Sophie Alain 10 Xavier Duval 2 Nawal Houhou 11 Yolande Costa 2 Philippe Vanhems 12, 13 Sélilah Amour 12 Fabrice Carrat 14 Bruno Lina 15 Odile Launay 2 Pierre Tattevin 1, 6, *
* Corresponding author
1 CHU Pontchaillou [Rennes]
2 F-CRIN, Innovative clinical research network in vaccinology (I-REIVAC)
3 CIC 1417 - CIC Cochin Pasteur
4 CIC Montpellier
5 UP Médecine Paris Centre - Université de Paris - UFR Médecine Paris Centre [Santé]
6 CIC - Centre d'Investigation Clinique [Rennes]
7 Service de Virologie [CHU Cochin]
8 CHU Saint-Eloi
9 CIC1435 - Centre d'Investigation Clinique de Limoges
10 RESINFIT - Anti-infectieux : supports moléculaires des résistances et innovations thérapeutiques
11 AP-HP - Hôpital Bichat - Claude Bernard [Paris]
12 Service d'Hygiène, Epidémiologie et Prévention [Hôpital Edouard Herriot - HCL]
13 LPE-Fondation Mérieux - Laboratoire des pathogènes émergents -- Emerging Pathogens Laboratory
CIRI - Centre International de Recherche en Infectiologie - UMR
14 iPLESP - Institut Pierre Louis d'Epidémiologie et de Santé Publique
15 HCL - Hospices Civils de Lyon
Abstract : Purpose - To describe the burden, and characteristics, of influenza-like illness (ILI) associated with non-influenza respiratory viruses (NIRV). Methods - We performed a prospective, multicenter, observational study of adults admitted with ILI during three influenza seasons (2012-2015). Patients were screened for picornavirus, respiratory syncytial virus (RSV), coronavirus, human metapneumovirus, adenovirus, bocavirus, parainfluenza virus, and influenza, by PCR on nasopharyngeal samples. We excluded patients coinfected with NIRV and influenza.Results - Among 1421 patients enrolled, influenza virus was detected in 535 (38%), and NIRV in 215 (15%), mostly picornavirus (n = 61), RSV (n = 53), coronavirus 229E (n = 48), and human metapneumovirus (n = 40). In-hospital mortality was 5% (NIRV), 4% (influenza), and 5% (no respiratory virus). As compared to influenza, NIRV were associated with age (median, 73 years vs. 68, P = 0.026), chronic respiratory diseases (53% vs. 45%, P = 0.034), cancer (14% vs. 9%, P = 0.029), and immunosuppressive drugs (21% vs. 14%, P = 0.028), and inversely associated with diabetes (18% vs. 25%, P = 0.038). On multivariable analysis, only chronic respiratory diseases (OR 1.5 [1.1-2.0], P = 0.008), and diabetes (OR 0.5 [0.4-0.8], P = 0.01) were associated with NIRV detection.Conclusions - NIRV are common in adults admitted with ILI during influenza seasons. Outcomes are similar in patients with NIRV, influenza, or no respiratory virus.
Keywords : Human metapneumovirus Influenza Coronavirus Respiratory syncytial virus Influenza-like illness Picornavirus
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UNIV-RENNES1 | HEH | CIC203 | UR1-UFR-SVE | UNIV-RENNES | GEIST | SU-MEDECINE | UDL | UNIV-LYON1 | CIRI | BIOSIT | CIC | CIRI-LPE | IPLESP | CNRS | HCL | UNILIM | ENS-LYON | UP-SANTE | INSERM | SORBONNE-UNIVERSITE | UNIV-PARIS | POLITIQUES-PUBLIQUES | SU-TI

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François Benezit, Paul Loubet, Florence Galtier, Charlotte Pronier, Nezha Lenzi, et al.. Non-influenza respiratory viruses in adult patients admitted with influenza-like illness a 3-year prospective multicenter study. Infection, Springer Verlag, 2020, 48 (4), pp.489-495. ⟨10.1007/s15010-019-01388-1⟩. ⟨hal-02498632⟩

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