6,291 results
6,291 results for: Virus
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Infectious Evolution: Ancient virus hit apes, not our ancestors, in the genes
A potentially deadly infection wormed its way into the DNA of ancestral chimpanzees and gorillas between 4 million and 3 million years ago, thus altering the evolution of these African apes while keeping clear of human ancestors on that same continent.
- Health & Medicine
Hepatitis B link to cancer is clarified
A kind of hepatitis B called genotype C is more likely to lead to liver cancer than are other genotypes of the hepatitis virus.
- Humans
Student Scientists to Watch: With diverse ideas, young talents win big in annual competition
With science projects by 40 of the nation's brightest high school students arrayed before them last week, judges had the task of weighing the merits of undertakings as diverse as the study of deep-sea volcanism and the development of a promising new antibiotic.
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Phages take breaks while ejecting DNA
Bacterial viruses, or phages, inject DNA into their prey in a way that is more complicated than researchers had previously thought.
- Physics
Tense encounters drive a nanomotor
Exploiting the relative strength of surface tension forces in the world of tiny objects, a novel type of nanomotor creates a powerful thrust each time molten metal droplets merge.
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Obesity may aggravate flu
At least in mice, obesity can greatly exaggerate the severity of flu by impairing the body's immune response.
- Health & Medicine
Virus might explain respiratory ailments
Human metapneumovirus, first isolated in 2001, is present in many respiratory infections that had previously gone unexplained.
- Tech
Snappy DNA: Long strand folds into octahedron
By harnessing the self-assembling properties of DNA, researchers coerced a single strand of the genetic material to assume the shape of an octahedron.
- Health & Medicine
Primate virus found in zoo workers
Viruses related to HIV can be found in the blood of some zoo staff and other people who work with primates, although the infections don't appear to be harmful.
- Animals
Jungle Genes: First bird genome is decoded
Researchers have unveiled a draft of the first bird genome to be sequenced, a vintage chicken.
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Worst of Two Worlds: Hybrid mosquitoes spread West Nile virus
Interbreeding between two Old World mosquito species may explain why their blood-sucking brethren in the United States transmit West Nile virus to people as readily as they do.
- Health & Medicine
Better-Off Circumcised? Foreskin may permit HIV entry, infection
Circumcision seems to offer partial protection against HIV infection, but not other sexually transmitted diseases.
