On World Malaria Day, it's important to remember that half a million children die each year from malaria -- through no fault of their own. Those under age five are especially vulnerable, as their bodies haven't yet developed immunity to deadly infection.
According to an article in the New York Times, "emerging diseases have quadrupled in the last half-century." The increase is mainly due to human encroachment into and destruction of wildlife habitat. For example, one study concluded that a four per cent increase in Amazon deforestation led to a 50 per cent increase in malaria because mosquitoes, which transmit the disease, thrive in the cleared areas.