Word: viruses
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...ever had shingles--a blistering rash that plagues about 1 million Americans each year, most of them elderly--chances are you know how devastating it can be. And if you've never had shingles--well, just wait. Shingles is caused by the same virus that causes chicken pox--a nasty little bundle of DNA that lies dormant in sensory nerves for decades after the initial infection until, for reasons that are still unclear, it is reawakened. Anyone who has ever had chicken pox is at risk of developing shingles, as well as the nerve damage that often accompanies the rash...
...years. It has a moral obligation to its own people, and to the world, to rectify the situation as soon as possible." DR. DAVID HO, U.S. aids researcher, warning in an article in the medical journal Nature that China is dangerously unprepared for an outbreak of the h5n1 virus...
...human death rate in hard-hit northern Vietnam has fallen to 34% this year, down from almost 80% for the entire country in 2004. Good news? Not if you're an epidemiologist. Investigators for the World Health Organization (WHO) have raised concerns that even though the H5N1 bird-flu virus appears to be weakening, it may be adapting better to human beings?potentially opening the door to a flu pandemic...
...Researchers have found that as the fatality rate dropped in northern Vietnam, there has been an increase in the number of cases clustered close together and in the age of those infected?signs that the virus may be finding more efficient ways to infect people, including human-to-human transmission, the principal barrier to a pandemic. The falling death rate could mean that this process of adaptation is accelerating. "In gaining the ability to go from one person to another, a virus may well lose its virulence," says Dr. Jeremy Farrar, director of the Oxford University Clinical Research Unit...
Davis recommended that students always run firewall and anti-virus software on their computers to protect them from threats, and that they exhibit heightened vigilance...