[In The Crease]

I think that these pandemics are the Earth's way of saying that it doesn't like the idea of 6 billion people. Thinning out the herd periodocally, it seems.

[TigerLikesRooster]

Re #3

Right, nature's way of controlling population. No need for condoms or contraceptives. Just virus will do.

[pandemic_1918]

The flu virus evolves via recombination, which happens most frequently when the denisty of the virus is high, so it actually may be involved in population control

http://www.recombinomics.com/viral_evolution.html

[Former Proud Canadian]

I thought AIDS was doing that job, 24/7.