title: Neces-SARI-ly?
authors: Department of Clinical Medicine, Wellcome Trust - HRB Clinical Research Facility, St. James's Hospital, Trinity College, Dublin, Ireland. drmartinloeches@gmail.com.|CIBER de Enfermedades Respiratorias (CIBERES), Barcelona, Spain. drmartinloeches@gmail.com.
authors: Ignacio
authors: I
authors: Martin-Loeches
authors: D'Or Institute for Research and Education, Postgraduate Program of Internal Medicine and Cancer, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
authors: Marcio
authors: M
authors: Soares
authors: CIBER de Enfermedades Respiratorias (CIBERES), Barcelona, Spain.|Respiratory Disease Department, Hospital Clínic i Provincial de Barcelona, IDIBAPS, Barcelona, Spain.
authors: Antoni
authors: A
authors: Torres
mesh_terms: D004196:Disease Outbreaks; D006801:Humans; D015994:Incidence; D007362:Intensive Care Units; D012307:Risk Factors; D012621:Seasons; D045169:Severe Acute Respiratory Syndrome / Q000453:epidemiology* / Q000382:microbiology*