‘Low-sugar’ vaccine can provide broad immunity against coronavirus variants
SAN DIEGO, March 25, 2025 — Sugar coatings aren’t only for candies; they also help viruses, like the ones that cause COVID-19, hide from their hosts’ immune system. Now, researchers have developed a universal vaccine that targets coronaviruses and the sugars that they use as cover. As demonstrated in animal studies, the vaccine removed sugar molecules from an area of a coronavirus spike protein that rarely mutates and created effective and plentiful antibodies to inactivate the virus.
Chi-Huey Wong, a chemistry professor ...


















