Media type: E-Article Title: When Pigs Fly: Pandemic influenza enters the 21st century Contributor: Trovão, Nídia S.; Nelson, Martha I. Published: Public Library of Science (PLoS), 2020 Published in: PLOS Pathogens, 16 (2020) 3, Seite e1008259 Language: English DOI: 10.1371/journal.ppat.1008259 ISSN: 1553-7374 Origination: Footnote: Access State: Open Access