I cannot remember if it was covid or influenza (h5n1?) where in the initial 3 days after infection it "makes" one feel like they want to be more social - more s

I cannot remember if it was covid or influenza (h5n1?) where in the initial 3 days after infection it "makes" one feel like they want to be more social - more social energy or something - so that when the contagiousness increases right before the bedridden part more people get infected. Apologies, since i read a lot of studies and only remember to save a few, and even so i have no way to catalog/tag/review the studies i have read. I just know i read it in the last 2 years so it could have been SARS-NCoV-2 or flu.