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Preview: Latest infectious disease news

Latest infectious disease news



MedicineWorld.Org brings daily infectious disease news from various sources to keep you updated on the latest events in the world on this topic. Medicineworld infectious disease news service is the most comprehensive infectious disease news service on the



Last Build Date: Tue, 13 Jan 2009 05:46:48 GMT

 



If you sleep less you catch cold

Tue, 13 Jan 2009 05:46:48 GMT

(image) Individuals who get less than seven hours of sleep per night appear about three times as likely to develop respiratory illness following exposure to a cold virus as those who sleep eight hours or more, as per a report in the January 12 issue of Archives of Internal Medicine, one of the JAMA/Archives journals........



New weapon in battle against HIV infection?

Tue, 13 Jan 2009 05:46:48 GMT

(image) Scientists have discovered a potentially important new resistance factor in the battle against HIV: blood types. An international team of scientists from Canadian Blood Services, The Hospital for Sick Children (SickKids) and Lund University in Sweden have discovered that certain blood types are more predisposed to contracting HIV, while others are more effective at fending it off........



What drives one of nature's powerful, nanoscale motors

Tue, 13 Jan 2009 05:46:48 GMT

(image) Peering at structures only atoms across, scientists have identified the clockwork that drives a powerful virus nanomotor. Because of the motor's strength--to scale, twice that of an automobile--the new findings could inspire engineers designing sophisticated nanomachines. In addition, because many virus types may possess a similar motor, including the virus that causes herpes, the results may also assist pharmaceutical companies developing methods to sabotage virus machinery........



More Resistant Avian Flu Virus

Tue, 13 Jan 2009 05:46:48 GMT

(image) A new University of Colorado at Boulder study shows the resistance of the avian flu virus to a major class of antiviral drugs is increasing through positive evolutionary selection, with scientists documenting the trend in more than 30 percent of the samples tested. The avian flu, an Influenza A subtype dubbed H5N1, is evolving a resistance to a group of antiviral drugs known as adamantanes, one of two classes of antiviral drugs used to prevent and treat flu symptoms, said CU-Boulder doctoral student Andrew Hill, lead study author. The rise of resistance to adamantanes -- which include the nonprescription drugs amantadine and rimantadane -- may be associated with Chinese farmers adding the drugs to chicken feed as a flu preventative, as per a 2008 paper by scientists from China Agricultural University, said Hill........



Medical lessons from cell phones

Tue, 13 Jan 2009 05:46:48 GMT

(image) Cell phones have already revolutionized the way people around the world communicate and do business. Thanks to advances being made at UCLA, they are about to do the same thing for medicine. In the lab of UCLA electrical engineering professor Aydogan Ozcan, a prototype cell phone has been constructed that is capable of monitoring the condition of HIV and malaria patients, as well as testing water quality in undeveloped areas or disaster sites. The innovative imaging technology was invented by Ozcan, a member of the California NanoSystems Institute at UCLA, and has been miniaturized by scientists in his lab to the point that it can fit in standard cell phones........



Circumcision Reduces the Risk of HIV Infection

Tue, 13 Jan 2009 05:46:48 GMT

(image) A new U.S. study has observed that being circumcised significantly reduced the risk of HIV infection in heterosexual African American men known to have been exposed to the virus. The findings complement those of recently reported clinical trials in Africa, where interventional use of adult male circumcision similarly reduced the risk of HIV infection in heterosexual men. The findings of the new study, along with similar results from other studies, suggest that circumcision may protect other heterosexual males in the U.S. The promising new findings are published in the January 1 issue of The Journal of Infectious Diseases, now available online........



Interferon needed for cells to "remember" how to defeat a virus

Tue, 13 Jan 2009 05:46:48 GMT

(image) Researchers at UT Southwestern Medical Center have determined that the immune-system protein interferon plays a key role in "teaching" the immune system how to fight off repeated infections of the same virus. The findings, available online and in the Dec. 15 issue of the Journal of Immunology, have potential application in the development of more effective vaccines and anti-viral therapies........



Childhood vaccines cause financial burden

Tue, 13 Jan 2009 05:46:48 GMT

(image) The costs that health care providers are charged and reimbursed for childhood vaccines vary widely, and the high cost of some immunizations is leading to significant financial strain for some physicians, as per a pair of new studies from the University of Michigan Health System. The findings suggest that a number of physicians appear to be paying too much and receiving too little reimbursement, but they can use this new data to help improve both areas, the scientists say........



Antibiotics: Single largest class of drugs causing liver injury

Tue, 13 Jan 2009 05:46:48 GMT

(image) Antibiotics are the single largest class of agents that cause idiosyncratic drug-induced liver injury (DILI), reports a new study in Gastroenterology, an official journal of the American Gastroenterological Association (AGA) Institute. DILI is the most common cause of death from acute liver failure and accounts for approximately 13 percent of cases of acute liver failure in the U.S. It is caused by a wide variety of prescription and nonprescription medications, nutritional supplements and herbals........



Parents are the unsung heroes

Tue, 13 Jan 2009 05:46:48 GMT

(image) It's a parents worst nightmare, a newborn baby going under the knife to repair a heart defect. If the baby survives, that's when the real work begins for parents. University of Alberta nursing professor Gwen Rempel has seen hundreds of babies on the brink as a former pediatric cardiology nurse; she wanted to find out just what parents go through........



Winter brings flu, summer brings bacterial infections

Tue, 13 Jan 2009 05:46:48 GMT

(image) In the same way that winter is usually known to be the "flu season," a new study suggests that the dog days of summer may well be the "bacterial infection" season. Scientists have discovered that serious infections caused by gram-negative bacteria can go up as much as 17 percent with every 10 degree increase in seasonal temperature. The findings, which were based on seven years of data from infections in a Baltimore hospital, suggest that the incidence there of some of these illnesses might be up to 46 percent higher in summer than in winter........



Antibiotics, your gut and you

Tue, 13 Jan 2009 05:46:48 GMT

(image) We are always being told by marketers of healthy yogurts that the human gut contains a bustling community of different bacteria, both good and bad, and that this balance is vital to keeping you healthy. But if you target the disease-causing bacteria with medicine, what might be the collateral damage to their health-associated cousins that call the human body home?........



Molecule that stops SARS

Tue, 13 Jan 2009 05:46:48 GMT

(image) A Purdue University researcher has created a compound that prevents replication of the virus that causes SARS and could lead to a therapy for the disease. "The outbreak of SARS in 2003 led to hundreds of deaths and thousands of illnesses, and there is currently no therapy," said Arun Ghosh, the Purdue professor that led the molecular design team. "Eventhough it is not currently a threat, there is the concern that SARS could return or be used as a biological weapon. It is important to develop a therapy as a safeguard"........



Airport malaria: cause for concern in the US

Tue, 13 Jan 2009 05:46:48 GMT

(image) In a global world, significant factors affect the spread of infectious diseases, including international trade, air travel and globalized food production. "Airport malaria" is a term coined by scientists to explain the more recent spread of malaria to areas such as the United States and Europe, which some researchers credit to warmer climate changes........



New Chemical Key That Could Unlock Hundreds Of New Antibiotics

Tue, 13 Jan 2009 05:46:48 GMT

(image) Chemistry scientists at The University of Warwick and the John Innes Centre, have found a novel signalling molecule that could be a key that will open up hundreds of new antibiotics unlocking them from the DNA of the Streptomyces family of bacteria. With bacterial resistance growing scientists are keen to uncover as a number of new antibiotics as possible. Some of the Streptomyces bacteria are already used industrially to produce current antibiotics and scientists have developed approaches to find and exploit new pathways for antibiotic production in the genome of the Streptomyces family. For a number of years it was thought that the relatively unstable butyrolactone compounds represented by "A-factor" were the only real signal for stimulating such pathways of possible antibiotic production but the Warwick and John Innes teams have now found a much more stable group of compounds that may have the potential to produce at least one new antibiotic compound from up to 50% of the 1000 or so known Streptomyces family of bacteria........