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Vaccines May Help End the Pandemic. But Realistically, It’s Not Even Halftime Yet.

We’re all so goddamned tired of this fucking pandemic and so people are looking at the development and distribution of a vaccine as the thing that’s going to get us out of this (and quick). But realistically, that’s not what’s going to happen. Carl Zimmer wrote about some of the challenges with Covid-19 vaccines.

The first vaccines may provide only moderate protection, low enough to make it prudent to keep wearing a mask. By next spring or summer, there may be several of these so-so vaccines, without a clear sense of how to choose from among them. Because of this array of options, makers of a superior vaccine in early stages of development may struggle to finish clinical testing. And some vaccines may be abruptly withdrawn from the market because they turn out not to be safe.

“It has not yet dawned on hardly anybody the amount of complexity and chaos and confusion that will happen in a few short months,” said Dr. Gregory Poland, the director of the Vaccine Research Group at the Mayo Clinic.

See also Dr. Fauci’s belief that our best case scenario for returning to something close to normal life in the US is late 2021.

On Twitter, Zimmer also commented on something that I hadn’t really thought about: that all of these vaccines in development in the US are only for adults:

I wrote last month that no trials for kids had started. Update: still no US trials for kids. The goal of having shots ready for them by fall 2021 may be slipping further away.

From Zimmer’s article on the development of a kids’ vaccine:

Only if researchers discovered no serious side effects would they start testing them in children, often beginning with teenagers, then working their way down to younger ages. Vaccine developers are keenly aware that children are not simply miniature adults. Their biology is different in ways that may affect the way vaccines work. Because their airways are smaller, for example, they can be vulnerable to low levels of inflammation that might be harmless to an adult.

These trials allow vaccine developers to adjust the dose to achieve the best immune protection with the lowest risk of side effects. The doses that adults and children need are sometimes different โ€” children get smaller doses of hepatitis B vaccines, for example, but bigger doses for pertussis.

You probably hate reading these kinds of articles; I know I do. But facing up to the reality of our situation, particularly here in the US where our political leadership has utterly failed in protecting us from this virus, is much better than burying our heads in the sand โ€” that’s just not mentally healthy.