IFN pretreatment timing21 May 2020 11:56
This is just one for the very keen researchers (nobbygnome, are you there?), it's very technical!
They're studying IFN-alpha not beta but (if I understand correctly) they find that it can lead to opposite effects, depending on the details of timing.
https://www.biorxiv.org/content/10.1101/2020.05.18.103101v1
"... our results, highlighting the importance of IFN dynamics, may suggest time-based strategies for enhancing the effectiveness of IFN pretreatment in clinical applications against viruses, such as SARS-CoV-2."
"Latest research revealed that SARS-CoV28 2 is especially sensitive to type I IFNs, compared to other coronaviruses, making IFN pretreatment a potential strategy to prevent SARS-CoV-2 infection [43-45]. Our findings suggested possible ways to enhance the effectiveness of IFNs for future clinical use. For example, repetitive short-term administrations of IFN may lead to less desensitization and a more dramatic effect than prolonged treatments."