Researching the effect of calorie restriction and chronic infections, I fell over this article in an issue of Blood form 21st of November 2019.
The main point of interest seen from my side is that “… limiting glucose supply by intermittent fasting ameliorates MPN features.” – so IF has a positive effect on MPN patients. There you go.
Further reading: https://ashpublications.org/blood/article/134/21/1778/428784/Sugar-thieves-and-addicts-nutrient-subversion-in