Axios: “Experts warn it’s time to invest in higher-quality masks with a tight fit in the wake of the Delta variant, especially among the unvaccinated like children and other vulnerable populations. Why it matters: Much of the public health message has been to persuade people to wear any mask let alone which kind to buy. Mask quality hasn’t been explained well enough, Michael Osterholm said Sunday on NBC’s Meet the Press.

• “A cloth mask surely can give you some protection. But it’s not the kind of protection that you’ll get when you use a much more effective mask. We have not talked about that nearly enough,” he said…”