1 Neonatal unit and Auvergne Rhone Alpes human milk bank, Croix Rousse University Hospital, Hospices Civils de Lyon, Lyon, France.
2 CarMen Laboratory, INSERM, INRA, Claude Bernard University, Lyon, France.
3 Ile de France Human Milk Bank, Hopital Necker enfants maladies, Paris, France.
4 Human Milk Bank, Hopital mère-enfant, Nantes, France.
5 Bordeaux-Marmande Human Milk Bank, Hopital Pellegrin, Bordeaux, France.
6 Human Milk Bank, Hopital Jeanne de Flandres, Lille, France.
7 Human Milk Bank, Hopital Rene Dubos, Pontoise, France.
8 Infection Control Unit, Laboratory of Clinical Microbiology, Necker - Enfants malades Hospital & EHU7328, Imagine Institute, University of Paris, Paris, France.
9 Hospices Civils de Lyon Virology Lab, Institute of Infectious Agents, National Reference Center for Viral Respiratory Infections, Croix Rousse University Hospital, Lyon, France.