6,291 results
6,291 results for: Virus
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19184
In this article, I was surprised to read that chimeras harboring a mutation are not medically useful. Consider the value of cytokine-receptor mutations in humans, with respect to HIV. It’s likely that introducing some genetic mutations can inhibit viruses or bacteria in a host. Freda Wasserstein Robbins New Jersey City University Jersey City, N.J.
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19245
Your article refers to a virus as a “microbe.” I think of a virus more as a seed or spore. What definition is Science News using for the word? Neil MurphyWalnut Creek, Calif. Medical dictionaries differ in defining viruses as microbes . Merriam-Webster’s Collegiate Dictionary Eleventh Edition ( 2003, Merriam-Webster ) says that viruses are […]
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19276
Your article makes a common error. Whereas chicken pox is caused by one virus, a “cold” is a set of symptoms that can be caused by more than 200 distinct viruses. A better example for short-term immunity might have been pertussis or tetanus. Jennifer L. Bankers-FulbrightMayo ClinicRochester, Minn.
- Humans
Should health care workers be required to get flu vaccinations?
Mandatory policies increase participation at some hospitals, but are still disputed by unions and some staffers.
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- Humans
Pre-chewed baby food common in HIV-positive households, study suggests
Here’s a particularly disturbing stat: 31 percent of babies in households where the mom is HIV-positive get at least some pre-chewed food. In most cases the surveyed caregivers who reported doing that pre-chewing were the infected moms.
- Humans
Obesity compromises ability to fend off H1N1 flu
Think you’ll easily survive a bout of H1N1 swine flu? Fat chance – if you’re really fat. New research points to a likely explanation for this weighty vulnerability: a failure of the immune system to rev up as strongly as it should.
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The Sopranos with feathers
Stories from a day of bird searching.
- Humans
Germs’ persistence: Nothing to sneeze at
Years ago, I read (probably in Science News) that viruses can’t survive long outside their hosts. That implied any surface onto which a sneezed-out germ found itself — such as the arm of a chair, kitchen counter or car-door handle — would effectively decontaminate itself within hours to a day. A pair of new flu papers now indicates that although many germs will die within hours, none of us should count on it. Given the right environment, viruses can remain infectious — potentially for many weeks, one of the studies finds.
- Humans
Researchers, journals asked to censor data
Scientists undertake research to advance knowledge. Normally, one aspect of that advancement is to find as broad an audience for the newly acquired data as possible. But what happens if medically important data could be put to ruthless purposes? That question underlies the ruckus developing over two new bird flu papers.
- Humans
Bush meat can be a viral feast
Monkeys and apes are considered edible game in many parts of Africa. As Africans have emigrated to other parts of the world, some have retained their love of this so-called bushmeat. A new study now finds that even when smoked, meat from nonhuman primates — from chimps to monkeys — can host potentially dangerous viruses. Smuggled imports confiscated at U.S. airports provided the samples tested in this investigation.
- Humans
Bat killer is still spreading
Since 2006, some 6 million to 7 million North American bats have succumbed to white-nose syndrome, a virulent fungal disease. That figure, issued in January by the U.S. Fish & Wildlife Service, at least sextupled the former estimate that biologists had been touting. But the sharp jump in the cumulative death toll isn’t the only disturbing new development. On April 2, scientists confirmed that white-nose fungus has apparently struck bats hibernating in two small Missouri caves. The first signs of clinical disease have also just emerged in Europe.
