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Tag: "infectious" at biology news

Learning to love bacteria: Stanford scientist highlights bugs' benefits

... than the initial infection. Furthermore, as many infectious diseases have decreased, autoimmune diseases such as ulcerative colitis, Crohn's disease and diabetes have increased. "All these observations have been made without necessarily trying to pull it all together," said Falkow. "So what I tried to do in ...

Scientists look to the Bahamas as a model for coral reef conservation

... than the initial infection. Furthermore, as many infectious diseases have decreased, autoimmune diseases such as ulcerative colitis, Crohn's disease and diabetes have increased. "All these observations have been made without necessarily trying to pull it all together," said Falkow. "So what I tried to do in ...

UW scientists unravel critical genetic puzzle for flu virus replication

...o package its genetic materials" as it creates its infectious particles, says Yoshihiro Kawaoka, a University of.... They infect cells and use them to help make more infectious particles, which are released from the cell and go on to infect other cells. Using a technique know...

New Rotavirus vaccine joins routine infant immunization schedule

...ommon childhood illness that is the single largest infectious disease killer of infants and young children worldwide. Three scientists associated with The Children's Hospital of Philadelphia and The Wistar Institute are co-inventors of the vaccine, based on research dating to 1980. Meeting today in Atlanta, th...

Flesh-eating bacteria escape body's safety net

....D., UCSD associate professor of pediatrics and an infectious diseases physician at Children's Hospital, San Diego. The UCSD investigators examined the interaction of Strep bacteria with neutrophils, specialized white blood cells that play a front line role in human's immune defense against pathogenic microbes...

Typhoid fever led to the fall of Athens

...f Athens says: "Studying the historical aspects of infectious diseases can be a powerful tool for several disciplines to learn from. We believe this report to be of outstanding importance for many scientific fields, since it sheds light to one of the most debated enigmas in medical history." ...

Mice studies illustrate potential of chimp/human antibodies to protect against smallpox

...ey proteins responsible for cell-to-cell spread of infectious vaccinia virus. The researchers then combined the ...otencies and carry the potential to transmit other infectious agents, he adds. According to Dr. Purcell, the hybrid antibodies should be tested in another animal...

Cell barrier shows why bird flu not so easily spread among humans

... they cannot enter a cell, they are unable to make infectious particles that infect other cells -- or other hosts. "Our findings provide a rational explanation for why H5N1 viruses rarely infect and spread from human to human, although they can replicate efficiently in the lungs," the authors of the study writ...

Researchers use dirt to stay one step ahead of antibiotic resistance

...teria also play a central role in the treatment of infectious diseases. Approximately two-thirds of all known antibiotics are produced by bacteria called actinomycetes, commonly found in soils, compost, and other environmental sources. "By evolving in an environment of antibiotic production, incredibly resi...

Medical experts: US unlikely to have enough vaccines to stop avian flu

...acy of such strategies in preventing the spread of infectious diseases has not been extensively studied, Bruine de Bruin said. Although the federal government has expressed a commitment to open communication about these risks, its messages have not yet been scientifically evaluated, according to Fischhoff. ...

Waking a sleeping virus

... copies of the virus." One result is the disease infectious mononucleosis ?called the "kissing disease" because EBV is transmitted in saliva ?whose symptoms resemble that of a cold. But in rare cases activation of the virus also leads to EBV associated cancers, especially in people with immune deficiencies. ...

Potential vaccine developed for deadly leishmaniasis disease

... virus. These flu virus shells contain none of the infectious genetic material in full-fledges flu viruses. The ...r diseases as well," he said. Seeberger cited both infectious and parasitic diseases and vaccines against cancer. WHO assigned a high priority to development of ...

When mice choose mates, experience counts

...female scent when it was tainted with the scent of infectious parasites, opting for that over the scent of a healthy lone male. "Male odors can provide female mice with information on their quality, condition, health and suitability as a potential mate," says Pfaff. "This type of 'public information' uses cues...

Gene patterns in white blood cells quickly diagnose disease

...However, most methods for identifying pathogens or infectious agents in body fluids and tissues required that the pathogen proliferate to detectable and dangerous levels, thereby delaying diagnosis and treatment," says Rasha Hammamieh, a researcher on the study. Over the past five years Hammamieh and her col...

Faster immune system testing set to improve poultry quality

...uppression to varying degrees but Marek's disease, infectious bursal disease and chicken anaemia are particular concerns. A simple test to identify flocks that have been immunosuppressed by non-apparent infections was needed. The new test is both a useful research tool and a way to provide poultry companies wit...

Chemical guidance of T cells leads to immunologic memory and long-term immunity

...ls are key to vaccine strategies being studied for infectious agents such as HIV. But the CD8+ T cells can only become effective, long-lived memory cells after they encounter certain other cells in the lymph node that can activate them. The new research, conducted largely by senior postdoctoral fellows Flora C...

Flu not the only germ threat this time of year

...What's the deal? Simply put, there are a lot more infectious invaders besides the flu to worry about. They don'... For more than a decade Falsey and Walsh, who are infectious disease experts at Rochester General Hospital, have been on the hunt for a vaccine against RSV. Whil...

Extinctions linked to climate change

...t. They concluded that climate change is promoting infectious disease, eroding biodiversity, and that the urgency of reducing greenhouse gas concentrations is now undeniable. ...

Gene-specific Ebola therapies protect non-human primates from lethal disease

... high as 80 percent in humans. The virus, which is infectious by aerosol (although more commonly spread through blood and bodily fluids of infected patients), is of concern both as a global health threat and a potential agent of biological warfare or terrorism. Currently there are no available vaccines or ther...

Protein finding could lead to treatment for inflammatory diseases

...immune system by stimulating inflammation to fight infectious pathogens. "We found that the NF-kB levels were always lower in MC160-expressing cells," Shisler said. "This was an exciting new finding because no one had previously found a function for MC160. Currently, Brian and I think that this protein's role ...

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