"Why do parasites harm their hosts? Conventional wisdom holds that because parasites depend on their hosts for survival and transmission, they should evolve to become benign, yet many parasites cause harm. Theory predicts that parasites could evolve virulence (i.e., parasite-induced reductions in host fitness) by balancing the transmission benefits of parasite replication with the costs of host death. This idea has led researchers to predict how human interventions—such as vaccines—may alter virulence evolution, yet empirical support is critically lacking." Two papers
demonstrate empirical evidence for related models predicting the origin of virulence: [more inside]
posted by Blasdelb
on Oct 21, 2012 -
A new malaria vaccine has been shown effective in large-scale field trials. After decades of disappointment, researchers think they're finally on track to unleash the first practical vaccine against malaria, one of mankind's ancient scourges.
In the world's first large field trial of an experimental malaria vaccine, several thousand young children who got three doses had about 55 percent less risk of getting the disease over a year than those who got a control vaccine against rabies or meningitis. [more inside]
posted by BobbyVan
on Oct 18, 2011 -
The New England Journal of Medicine made available today an early release of articles from their planned January 30, 2003 issue, designed "to help inform the current national debate about smallpox vaccination" [more inside....articles unfortunately available only in PDF....]
posted by fold_and_mutilate
on Dec 20, 2002 -
Immortality Protein May Offer Cancer Vaccine.
You know, I'm glad they're making progress, but once the 'cure' is found, I can't daydream about being this smart, intelligent doctor, (something right out of a soap), that creates the cure for cancer, and woos all the la-a-dies... then again there is always being that evil-twin and start cloning, with that, you won't need to wooo anyone, they're your toys! mwahahaha!
posted by tiaka
on Aug 30, 2000 -