I think that people's resistance to vaccination isn't going to disappear until we address some of the nonmedical reasons for that resistance and people's discomfort and distrust of the government. That's bigger than what most medical professionals can handle.

On the pro-vaccine side - and not everyone does this, but I saw it enough for it to make me really uncomfortable - is a tendency to accuse people who are wary of vaccination of being stupid and not understanding science.

Herd immunity is, it turns out, not incredibly easy to understand. It took me quite a bit of reading before I fully grasped it. But understanding herd immunity is essential to understanding why we vaccinate the way we do.

One of the mysteries of hep B immunization is that vaccinating only 'high risk' groups, which was the original public health strategy, did not bring down rates of infection.

I have a political philosophy by which I judge political events. It's called socialism, which at its core is about achieving equality, justice and peace through democracy.

We all know that the earlier cancer is detected the more successful treatment will be, and my cancer had spread to my ribs and that was a very fast-growing cancer.

And it turns out that tribes, not money, not factories, that can change our world, that can change politics, that can align large numbers of people. Not because you force them to do something against their will. But because they wanted to connect.

Indiscriminate firing by police on people is absolute barbarism. Instead of solving their problems, the government is trying to suppress the people by force.