Slightly older (I don't think it mentions the exterior sugars) but more detailed and comprehensive Economist article about the coronavirus structure and how it motivates research into different solutions (e.g., why do we hope remdesivir will help?): <a href="https://www.economist.com/briefing/2020/03/12/understanding-sars-cov-2-and-the-drugs-that-might-lessen-its-power" rel="nofollow">https://www.economist.com/briefing/2020/03/12/understanding-...</a><p>Was also previously discussed here <a href="https://news.ycombinator.com/item?id=22572311" rel="nofollow">https://news.ycombinator.com/item?id=22572311</a>