Moderna-backed Mouse Study offers first head-to-head BA.5, BA.1 'Booster' data :
<a href="https://arstechnica.com/science/2022/09/in-mice-the-new-ba-5-booster-works-about-the-same-as-ba-1-shot-fda-passed-up/" rel="nofollow">https://arstechnica.com/science/2022/09/in-mice-the-new-ba-5...</a>