Tag Archives: virus

Findings Show How AIDS Spread Across North America

A new technique that allowed researchers to analyze genetic material from serum samples of HIV patients taken before AIDS was known provides a glimpse into the beginnings of the epidemic.

Researchers at the University of Arizona and the University of Cambridge in the U.K. have reconstructed the origins of the AIDS pandemic in unprecedented detail. (more…)

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Map shows hotspots for bat-human virus transmission risk

West Africa, sub-Saharan Africa and South East Asia are most at risk from bat viruses ‘spilling over’ into humans resulting in new emerging diseases, according to a new global map compiled by scientists at UCL, the Zoological Society of London (ZSL) and the University of Edinburgh. (more…)

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Starved T cells allow hepatitis B to silently infect liver

Hepatitis B stimulates processes that deprive the body’s immune cells of key nutrients that they need to function, finds new UCL-led research funded by the Medical Research Council and Wellcome Trust.

The work helps to explain why the immune system cannot control hepatitis B virus infection once it becomes established in the liver, and offers a target for potential curative treatments down the line. The research also offers insights into controlling the immune system, which could be useful for organ transplantation and treating auto-immune diseases. (more…)

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A virus reveals the physics of nanopores

Nanopores could provide a new way to sequence DNA quickly, but the physics involved isn’t well understood. That’s partly because of the complexities involved in studying the random, squiggly form DNA takes in solution. Researchers from Brown have simplified matters by using a stiff, rod-like virus instead of DNA to experiment with nanopores. Their research has uncovered previously unknown dynamics in polymer-nanopore interactions.

PROVIDENCE, R.I. [Brown University] — Nanopores may one day lead a revolution in DNA sequencing. By sliding DNA molecules one at a time through tiny holes in a thin membrane, it may be possible to decode long stretches of DNA at lightning speeds. Scientists, however, haven’t quite figured out the physics of how polymer strands like DNA interact with nanopores. Now, with the help of a particular type of virus, researchers from Brown University have shed new light on this nanoscale physics. (more…)

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Newly found tactics in offense-defense struggle with hepatitis C virus

The hepatitis C virus has a previously unrecognized tactic to outwit antiviral responses and sustain a long-term infection. It also turns out that some people are genetically equipped with a strong countermeasure to the virus’ attempt to weaken the attack on it.

The details of these findings suggest potential targets for treating HCV, according to a research team led by Dr. Ram Savan, assistant professor of immunology at the University of Washington. The study was published in Nature Immunology. (more…)

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Decoding dengue and West Nile: Researchers take steps toward control of growing public health problems

ANN ARBOR — Dengue fever and West Nile fever are mosquito-borne diseases that affect hundreds of millions of people worldwide each year, but there is no vaccine against either of the related viruses.

A team of scientists at the University of Michigan and Purdue University has discovered a key aspect both to how the viruses replicate in the cells of their host and how they manipulate the immune system as they spread. (more…)

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Microbial Murder Mystery Lands Two UA Students in Top 10 of Ocean Science Video Challenge

A three-minute cartoon video made by two UA graduate students is one of 10 finalists in the Ocean 180 Video Challenge, an outreach campaign designed to inspire scientists to communicate the meaning and significance of scientific research to a broader audience.

A science video disguised as a cartoon murder mystery has landed two University of Arizona marine ecology students among the top 10 finalists in the Ocean 180 Video Challenge, an outreach campaign designed to inspire scientists to communicate the meaning and significance of scientific research to a broader audience. (more…)

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