Another study observed significantly higher IFN-\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{upgreek}\usepackage{mathrsfs}\setlength{\oddsidemargin}{-69pt}\begin{document}$\beta$\end{document}β secretion from Calu-3 cells infected with Omicron variant BA.2 compared to the Wuhan variant 72 h post-infection (Gori Savellini, Anichini & Cusi, 2023). The gene discussed is IFNA1; the disease is infection.