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Infectious Disease
Pairing masks and hand washing could drastically slow spread of pandemic flu PDF Print E-mail
Tuesday, 31 January 2012 22:42
ANN ARBOR, Mich.—Masks and hand hygiene could cut the spread of flu-like symptoms up to 75 percent, a University of Michigan study found.

A new report shows the second-year results (2007-2008) of the ground-breaking U-M M-Flu study found up to a 75 percent reduction in flu-like illness over the study period when using hand hygiene and wearing surgical masks in residence halls, said Allison Aiello, associate professor of epidemiology in the U-M School of Public Health. Aiello and Dr. Arnold Monto, SPH professor of epidemiology, are co-principal investigators of the M-Flu study.

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Trudeau Institute announces latest discovery in vaccine development PDF Print E-mail
Tuesday, 13 December 2011 05:05

Research describes advantages of new vaccine adjuvant

Saranac Lake, N.Y. — New research from the laboratory of Dr. Elizabeth Leadbetter at the Trudeau Institute may lead to a whole new class of vaccines. Dr. Leadbetter's lab has discovered new properties of a potential vaccine adjuvant that suggest it could be useful for enhancing protection against a number of different infections. This new data will be published in the January 2012 issue of the journal Nature Immunology (Vol. 13, pp. 44-50). The paper, "iNKT cells direct B cell responses to cognate lipid antigen in an interleukin 21-dependent manner," is now available through Advance Online Publication (AOP) on Nature Immunology's website at http://www.nature.com/ni/journal/vaop/ncurrent/full/ni.2172.html.

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Discordance among commercially-available diagnostics for latent TB infection PDF Print E-mail
Friday, 09 December 2011 05:01

In populations with a low prevalence of tuberculosis (TB), the majority of positives with the three tests commercially available in the U.S for the diagnosis of TB are false positives, according to a new study.

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Novel drug wipes out deadliest malaria parasite through starvation PDF Print E-mail
Thursday, 08 December 2011 04:20

December 7, 2011—(BRONX, NY)—An antimalarial agent developed by researchers at Albert Einstein College of Medicine of Yeshiva University proved effective at clearing infections caused by the malaria parasite most lethal to humans – by literally starving the parasites to death. The novel research, carried out on a small number of non-human primates, could bolster efforts to develop more potent therapies against one of the world's leading killers. The study, published in the November 11, 2011 issue of PLoS ONE, was led by senior author Vern Schramm, Ph.D., professor and Ruth Merns Chair in Biochemistry at Einstein.

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UCLA researchers suggest unconventional approach to control HIV epidemics PDF Print E-mail
Thursday, 08 December 2011 04:11

A new weapon has emerged to prevent HIV infection. Called pre-exposure prophylaxis, or PrEP, it is a strategy of providing medications to at-risk people before they are exposed to the virus. Having shown great promise in recent phase 3 clinical trials, PrEP may soon be rolled out for public use.

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BWH researchers develop a vaccine prototype stronger than traditional vaccines PDF Print E-mail
Tuesday, 29 November 2011 05:18

Brigham and Women's Hospital (BWH) researchers have created a vaccine that is more potent than traditional vaccines available today. The glycoconjugate vaccine prototype is 100 times more effective than traditional glycoconjugate vaccines. Their work is published in the December 2011 issue of Nature Medicine.   

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Scientists determine how antibody recognizes key sugars on HIV surface PDF Print E-mail
Thursday, 24 November 2011 04:13

NIH-led study advances HIV vaccine research

WHAT:

HIV is coated in sugars that usually hide the virus from the immune system. Newly published research reveals how one broadly neutralizing HIV antibody actually uses part of the sugary cloak to help bind to the virus. The antibody binding site, called the V1/V2 region, represents a suitable HIV vaccine target, according to the scientists who conducted the study. In addition, their research reveals the detailed structure of the V1/V2 region, the last part of the virus surface to be visualized at the atomic level.

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Preserving lifesaving antibiotics today and for the future PDF Print E-mail
Friday, 18 November 2011 02:09

Infectious disease experts support 'Get Smart About Antibiotics Week,'

With antibiotic-resistant infections increasingly common, and a dangerous lack of new infection fighters in the drug development pipeline, it's more important than ever to use existing antibiotics appropriately. This week, infectious disease experts are helping to educate consumers, health care providers, and policymakers about when antibiotics can help, when misuse of these lifesaving drugs can do more harm than good, and the tremendous need for new antibiotics to protect patients.

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New study finds that even the cleanest wastewater contributes to more 'super bacteria' PDF Print E-mail
Tuesday, 15 November 2011 05:46

University of Minnesota research suggests that wastewater treated with standard technologies contributes far greater quantities

A new University of Minnesota study reveals that the release of treated municipal wastewater – even wastewater treated by the highest-quality treatment technology – can have a significant effect on the quantities of antibiotic-resistant bacteria, often referred to as "superbacteria," in surface waters.

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Researchers Closer to the Super Bug Puzzle PDF Print E-mail
Saturday, 12 November 2011 06:36

ScienceDaily (Nov. 11, 2011) Infectious diseases specialists from Austin Health are working closely with Microbiologists from the University of Melbourne to understand how Staph is becoming resistant to all antibiotic therapies. 

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Pitt researchers propose new model to design better flu shots PDF Print E-mail
Sunday, 25 December 2011 04:19

PITTSBURGH—The flu shot, typically the first line of defense against seasonal influenza, could better treat the U.S. population, thanks to University of Pittsburgh researchers.

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Malaria during pregnancy: New study assesses risks during first trimester PDF Print E-mail
Tuesday, 13 December 2011 04:25

The largest ever study to assess the effects of malaria and its treatment in the first trimester of pregnancy has shown that the disease significantly increases the risk of miscarriage, but that treating with antimalarial drugs is relatively safe and reduces this risk.

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New paper calls for strong steps to tackle antibiotic resistance PDF Print E-mail
Friday, 09 December 2011 04:50

Shahriar Mobashery, a University of Notre Dame researcher, is one of the coauthors of a new paper by a group of the world's leading scientists in academia and industry that calls for strong steps to be taken to control the global crisis of antibiotic resistance in bacteria. The group issued a priority list of steps that need to be taken on a global scale to resolve the crisis.

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When prophecy fails: How to better predict success in HIV prevention clinical trials PDF Print E-mail
Thursday, 08 December 2011 04:15

CHAPEL HILL, N.C. -- New research from the University of North Carolina at Chapel Hill schools of medicine and pharmacy may help explain the failure of some recent clinical trials of prevention of HIV infection, compared to the success of others that used the same drugs.

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Vaccine targeting latent TB enters clinical testing PDF Print E-mail
Thursday, 01 December 2011 05:30

One-third of the world's people have latent TB

COPENHAGEN, DENMARK/ROCKVILLE, MD, USA – Statens Serum Institut and Aeras today announce the initiation of the first Phase I clinical trial of a new candidate TB vaccine designed to protect people latently infected with TB from developing active TB disease. The trial is being conducted by the South African Tuberculosis Vaccine Initiative (SATVI) at its field site in Worcester, in the Western Cape province of South Africa. Dr. Hassan Mahomed is the principal investigator.

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New compound defeats drug-resistant bacteria PDF Print E-mail
Tuesday, 29 November 2011 05:07
Jason SelloA new way to attack drug-resistant bacteria: “If drug efflux pumps are inhibited, then bacteria will be susceptible to drugs again.”Chemists at Brown University have synthesized a new compound that makes drug-resistant bacteria susceptible again to antibiotics. The compound — BU-005 — blocks pumps that a bacterium employs to expel an antibacterial agent called chloramphenicol. The team used a new and highly efficient method for the synthesis of BU-005 and other C-capped dipeptides. Results appear in Bioorganic and Medicinal Chemistry.
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Targeting Bacterial Gas Defenses Allow for Increased Efficacy of Numerous Antibiotics PDF Print E-mail
Wednesday, 23 November 2011 04:58

http://www.sciencedaily.com/images/2011/11/111117144009.jpgAlthough scientists have known for centuries that many bacteria produce hydrogen sulfide (H2S) it was thought to be simply a toxic by-product of cellular activity. Now, researchers at NYU School of Medicine have discovered H2S in fact plays a major role in protecting bacteria from the effects of numerous different antibiotics.

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NIH-funded scientists identify potential malaria drug candidates PDF Print E-mail
Friday, 18 November 2011 01:54

New class of compounds would target earliest stages of infection

Researchers have discovered a group of chemical compounds that might one day be developed into drugs that can treat malaria infection in both the liver and the bloodstream. The study, which appears in the Nov. 18 issue of Science, was led by Elizabeth A. Winzeler, Ph.D., of the Scripps Research Institute in La Jolla, Calif., and was partially funded by the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health.
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Bacterial genes tell the tale of an outbreak's evolution PDF Print E-mail
Monday, 14 November 2011 06:48

Researchers at Harvard Medical School and Children's Hospital Boston have retraced the evolution of an unusual bacterial infection as it spread among cystic fibrosis patients by sequencing scores of samples collected during the outbreak, since contained. A significant achievement in genetic pathology, the work also suggests a new way to recognize adaptive mutations—to see evolution as it happens—and sheds new light on how our bodies resist infection.

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Decrease in observed rate of TB at a time of economic recession PDF Print E-mail
Monday, 07 November 2011 05:17

The incidence of tuberculosis (TB) in the U.S. is reported as being on the decrease, however untreated infected people act as a reservoir for disease. Any pool of the world's population harboring this disease gives cause for concern, especially since the BCG vaccine is only 70-80% effective at best. New research published in BioMed Central's open access journal BMC Public Health, shows that in 2009 the number of cases of TB reported across America was much lower than that recorded in previous years. This larger than expected decrease was most noticeable among recent immigrants, the homeless and other disadvantaged groups, which suggested that the decrease was most likely due to economic recession and lower immigration rates and may mask the future impact of TB.

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