[1] Univ Paris, Necker Enfants Malad Univ Hosp, AP HP, Pediat Emergency Dept, Paris, France
[2] Univ Paris, Sorbonne Univ, Ctr Rech Cordeliers, INSERM,UMRS 1138, Paris, France
[3] Univ Paris, Robert Debre Univ Hosp, AP HP, Dept Gen Pediat Pediat Infect Dis & Internal Med, Paris, France
[4] Univ Paris, Robert Debre Univ Hosp, AP HP, Clin Epidemiol Unit,ECEVE Inserm,UMR 1123, Paris, France
[5] Assoc Clin & Therapeut Infantile Val de Marne, Creteil, France
[6] Univ Paris, Necker Enfants Malad Univ Hosp, AP HP, Dept Clin Microbiol, Paris, France
[7] Univ Paris Saclay, Antoine Beclere Univ Hosp, AP HP, Pediat Dept, Clamart, France
[8] Inserm UMR1018, Ctr Res Epidemiol & Populat Hlth, Villejuif, France
[9] Univ Paris, Robert Debre Univ Hosp, AP HP, Pediat Emergency Dept, Paris, France
[10] Sorbonne Univ, Armand Trousseau Univ Hosp, AP HP, Pediat Emergency Dept, Paris, France
[11] Univ Paris, Ctr Rech Epidemiol & Stat, Inserm UMR1153, Obstet Perinatal & Pediat Epidemiol Res Team,Sorb, Paris, France
[12] Hop Ambroise Pare, AP HP, Serv Pediat, Boulogne, France
[13] Univ Paris, Hop Louis Mourier, AP HP, Serv Pediat Urgences, Colombes, France
[14] Univ Paris, Inserm, IAME, UMR1137, Paris, France
[15] Jean Verdier Hosp, AP HP, Gen Pediat & Pediat Emergency Dept, Bondy, France
[16] Univ Paris, Inserm U976, St Louis Res Inst, Human Syst Immunol & Inflammatory Networks, Paris, France
[17] AP HP, Strategy & Transformat Management Dept Emergencie, Paris, France
[18] AP HP, Patient Qual Med Org Dept Hlth Crisis Management, Paris, France
[19] Univ Paris, Inst Necker Enfants Malad, Inserm U1151, Equipe 11, Paris, France
[20] Harvard Med Sch, Div Infect Dis, Boston, MA 02115 USA