There's a lot of essay writing that could pass for journalism and journalism that could pass for essay. Some of it is just taxonomy.

In some areas, immunity has been eroded so much that the child who's not vaccinated is now actually more vulnerable to the complications of infectious diseases.

Some of the most interesting research that I did was about risk assessment and how ordinary citizens like me handle risk assessment and how irregular our risk assessments are.

Imagine the action of a vaccine not just in terms of how it affects a single body, but also in terms of how it affects the collective body of a community.

Nigeria and Pakistan are two countries that have had a lot of trouble with polio. And part of the reason is that there's a lot of political unrest, and people really distrust what the government is doing. That has an effect on people's health, and it has an effect on the health of children.

A vaccine introduces a small amount or a tempered version of the virus into the body - just enough to that the body is able to recognize it and deal with it when it encounters it again in the future.