Posted Thu Dec 1, 2011 07:00 AM ET | 0
On World AIDS Day, a sign that there may actually be promise for a vaccine to fight the disease. Read more

Posted Tue Oct 18, 2011 06:15 PM ET | 0
The vaccine, in development for more than 25 years, now gets most of its support from the Bill and Melinda Gates Foundation. Read more

Posted Tue Sep 20, 2011 02:17 PM ET | 0
Analysis of an outbreak of the disease in California shows that some vaccinated children are still vulnerable. Read more

Posted by Amy Enchelmeyer Wed Aug 24, 2011 04:55 PM ET | 0
These inventors hit the science jackpot -- by accident. Read more
Posted by Emily Sohn Fri Jun 17, 2011 07:00 AM ET | 0
With summer upon us, ticks are out again, and that's a problem for anyone who enjoys the great outdoors. Read more

Posted by Marianne English Mon Jun 13, 2011 03:40 PM ET | 0
In light of a spate of rabies attacks, take a closer look at the disease, its risks and how you can avoid it. Read more

Posted by Jennifer Viegas Mon Jun 6, 2011 01:28 PM ET | 0
Normally horses' immune systems keep the virus at bay, but stress and an increase in contact may break down defenses. Read more

Posted Thu Jun 2, 2011 10:01 AM ET | 0
Nearly 30 million people have been killed by AIDS and more than 33 million have the virus that causes it. Read more

Posted Sun May 22, 2011 04:50 PM ET | 0
Over the next five days, the African nation will vaccinate 3.6 million children in a bid to reduce measles deaths by 98 percent. Read more

Posted Thu May 5, 2011 10:34 AM ET | 0
The gene, identified as TRIM5, appears to offer protection from the deadly virus. Read more

Posted Mon Feb 21, 2011 12:12 PM ET | 0
The subject may be unpalatable, but animal research has improved the quality of human life. Read more

Posted Wed Dec 22, 2010 03:00 AM ET | 0
Researchers are testing a new contraceptive vaccine as a means to control the white-tailed deer population that is devastating yards, farms and forests. Discovery News' Jorge Ribas tags along. Watch video
Posted by Eric Bland Mon Dec 13, 2010 03:00 PM ET | 0
Students and staff in a high school had 762,868 encounters in one day, revealing how quickly diseases can spread. Read more

Posted Fri Oct 15, 2010 07:00 AM ET | 0
Sometimes a scientific discovery seems too good to be true. And often, it is. But not before it makes headlines. Read more

Posted by Emily Sohn Tue Sep 28, 2010 12:23 PM ET | 0
Do we need to worry about a rampant H1N1 this flu season? Probably not, say experts. But they can't rule anything out. Read more

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