1 HU Toulouse, Hôpital Purpan, Virology Laboratory, Toulouse, France.
2 INSERM UMR1291-CNRS UMR5051, Toulouse Institute for Infectious and Inflammatory Diseases (INFINITy), Toulouse, France.
3 Occupational Diseases Department, Toulouse University Hospital, Toulouse, France.
4 UMR1295, Unité Mixte INSERM-Université Toulouse III Paul Sabatier, Centre for Epidemiology and Research in Population Health Unit (CERPOP), Toulouse, Franceand.
5 Infectious and Tropical Diseases Department, Toulouse University Hospital, Toulouse, France.