With a health issue like COVID-19, we all like a linear story: There’s a killer virus out there, but we’ve found a vaccine that stops it cold in an individual, and when enough of us get the vaccine, the virus fades away and we all return to life, liberty and our pursuit of happiness.
That isn’t the COVID-19 story, though. It’s a dangerous virus, where some people get sick, some die and some never feel a thing. There are remarkable vaccines, but they have a sliding scale of effectiveness, and then they attenuate, and so we’ll need a booster to keep the virus from breaking through. Then some people who get sick from COVID-19 get well and seem protected, but then ill health effects return. These long-haulers are a mystery. Don’t even ask about the variants where the first COVID-19 was bad, but some of the follow-ups are worse by spreading faster and making people sicker.