id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
cord-003498-4ct0ywnw	Bdeir, Najat	A system for production of defective interfering particles in the absence of infectious influenza A virus	2019-03-01		.txt	text/plain	6225	249	42	Thus, more red fluorescent cells were observed when supernatants from PB2 expressing cells were added to MDCK-PB2opt as compared to MDCK-PB2 cells (Fig 5B) . This matches data published for DI-244 generated by use of standard virus [35] and demonstrates that DIPs produced in PB2 expressing cells are fully functional, although the activity of purified DIPs remains to be examined.	cache/cord-003498-4ct0ywnw.txt	txt/cord-003498-4ct0ywnw.txt
