von Magnus phenomenon

{{Short description|Generation of defective interfering particles by viruses}}

The von Magnus phenomenon describes the generation of defective interfering particles (DIPs) by viruses.{{cite book

|last=Kristen Ann Stauffer Thompson

|title=Quantitative Effects of Defective Interfering Virus-like Particles on the Growth and Population Behavior of Vesicular Stomatitis Virus

|url=https://books.google.com/books?id=iq4gdRxpXLEC&pg=PA2

|year=2008

|isbn=978-0-549-63757-8

|pages=2–}} It was first observed by Preben von Magnus in influenza viruses,{{cite web|url=http://www.denstoredanske.dk/Dansk_Biografisk_Leksikon/Sundhed/L%C3%A6ge/Preben_von_Magnus|title=Preben von Magnus|work=denstoredanske.dk}} after the serial passage of undiluted allantoic fluid in eggs.{{cite journal|title=Studies on the sedimentation of influenza virus | doi=10.1007/BF01242026 | volume=4|issue = 5|journal=Archiv für die Gesamte Virusforschung|pages=591–611 | last1 = Gard | first1 = S.|year = 1952 | pmid=14953289| s2cid=21838623 }}