1 Department of Pulmonology, Zuyderland Hospital, Henri Dunantstraat 5, Heerlen 6419, PC, Netherlands.
2 Department of Viroscience, Erasmus MC, University Medical Center Rotterdam the Netherlands, Department of Infectious Diseases, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands.
3 Department of Pulmonology, Zuyderland Hospital, Henri Dunantstraat 5, Heerlen 6419, PC, Netherlands; Faculty of Health, Medicine and Life Sciences, Maastricht University, Universiteitssingel 60, Maastricht 6229, ER, Netherlands.
4 Department of Medical Microbiology, Zuyderland Hospital, Henri Dunantstraat 5, Heerlen 6419, PC, Netherlands.
5 Department of Paediatrics, Zuyderland Hospital, Henri Dunantstraat 5, Heerlen 6419, PC, Netherlands.
6 Department of Pulmonology, Zuyderland Hospital, Henri Dunantstraat 5, Heerlen 6419, PC, Netherlands. Electronic address: m.dekruif@zuyderland.nl.