We've gone from a preponderance of acute and infectious disease as a source of premature death to chronic diseases, which are the preponderance of the burden of illness in most of the world. That puts a much higher premium on the prevention of chronic disease than ever in history.

AIDS today is not a death sentence. It can be treated as a chronic illness, or a chronic disease.

Futility. Uselessness. Bloody entrophy. Death matters, at least sometimes.

Nature had found the perfect place to hide the yellow fever virus. It seeded itself and grew in the blood, blooming yellow and running red.

The flu is very unpredictable when it begins and in how it takes off.

Evolution is all about passing on the genome to the next generation, adapting and surviving through generation after generation. From an evolutionary point of view, you and I are like the booster rockets designed to send the genetic payload into the next level of orbit and then drop off into the sea.