The good news: Many of the new COVID-19 vaccines are made with new, flexible technology that’s easy to upgrade. AdvertisementFor COVID-19 vaccines, Webby said a critical step is establishing a similar surveillance and testing network to flag the mutations that matter. COVID-19 vaccines produce antibodies that recognize the spike protein that coats the coronavirus. First-generation COVID-19 vaccines were tested in tens of thousands of people to be sure they work and are safe — research that took many months. After all, flu vaccines protect against three or four different types in one shot.

Source: Los Angeles Times February 16, 2021 20:03 UTC