1 Pediatric Intensive Care Unit Service ICU Service, Institut de recerca pediàtrica Hospital Sant Joan de Déu, CIBERESP, Hospital Sant Joan de Déu, Barcelona, Spain.
2 Pediatric Intensive Care Unit Service ICU Service, Hospital Sant Joan de Déu, Barcelona, Spain.
3 Section of Zoology and Biological Anthropology, Department of Evolutionary Biology, Ecology and Environmental Sciences, Faculty of Biology, Universitat de Barcelona, Barcelona, Spain.
4 Molecular Microbiology Department, Hospital Sant Joan de Déu, Barcelona, Spain.
5 Section of Zoology and Biological Anthropology, Department of Evolutionary Biology, Ecology and Environmental Sciences, Faculty of Biology, Universitat de Barcelona, Barcelona, Spain; Institut de Recerca de la Biodiversitat (IRBio), Universitat de Barcelona, Barcelona, Spain. Electronic address: [email protected].