Think of the earth as a living organism that is being attacked by billions of bacteria whose numbers double every forty years. Either the host dies, or the virus dies, or both die.
In fact, a large majority of those have died and of those expected to die of AIDS, as well as of those who are infected with the virus, are in sub-Saharan Africa.
Love is like a virus. It can happen to anybody at any time.
Changes... can only be effected by alterations in the original. The only thing not prerecorded in a prerecorded universe are the prerecordings themselves. The copies can only repeat themselves word for word. A virus is a copy. You can pretty it up, cut it up, scramble it - it will reassemble in the same form.
Natural selection shaped the human brain to be drawn toward aspects of nature that enhance our survival and reproduction, like verdant landscapes and docile creatures. There is no payoff to getting the warm fuzzies in the presence of rats, snakes, mosquitoes, cockroaches, herpes simplex and the rabies virus.
Dance music is like a virus: it has affected so many different genres.
When the AIDS epidemic broke, because I happened to be a science nerd and knew a lot about viruses and a lot about that virus at the time, I felt a moral obligation to go out and try to stem the fear and get out and explain to people what the disease was and how it worked.
We have met the Devil of Information Overload and his impish underlings, the computer virus, the busy signal, the dead link, and the PowerPoint presentation.
You can't take a knife on a plane anymore, but you can get on carrying a virus.
An inefficient virus kills its host. A clever virus stays with it.