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epidemic at biology news

A much-needed shot in the arm for HIV vaccine development

...rld's best long-term hope for bringingthe HIV/AIDS epidemic under control," said Helene Gayle, Director ofthe ...Being from the continent worst hit by the HIV/AIDS epidemic that hasclaimed more than twenty million lives and wiped out decades ofdevelopment gains," said Pasc...

Study Links Ebola Outbreaks To Animal Carcasses

...d hospital workers, creating the conditions for an epidemic in the process. Between August 2001 and June 2003, researchers noted that wildlife outbreaks occurred prior to five human outbreaks in the same relative locations. During this same period, 98 animal carcasses were discovered in the region straddling...

Scientists decipher genome of fungus that can cause life-threatening infections

...n has risen in parallel withthe HIV/AIDS worldwide epidemic and the increased use ofimmunosuppressive therapies.The study, posted online January 13 in Science Express, revealeddifferences in the virulence strategies used by C. neoformans comparedto other pathogenic fungi. Researchers also examined the genetic...

HIV Infection Still On The Rise

...ired. In the face of this global catastrophe, the epidemic in the United Kingdom seems both small and parochial, say the authors. Nevertheless, the latest figures show a 20% increase in the prevalence of HIV in 2003 and 2004 compared with 2002, partly because of infections acquired abroad. Furthermore, each...

Boosting HIV screening can increase survival and is cost effective

...vard and a co-author of the study, added, "The HIV epidemic is no longer confined to a handful of easily identifiable risk groups, yet current approaches to HIV testing are still focused on these sub-populations. The result is that 280,000 Americans with HIV remain unaware of their infection. Efforts to promo...

A new study examines how shared pathogens affect host populations

...en in any one particular host population. Thus, an epidemic on one species may result because of loss or reduction in the abundance of species in the community, without any numerical or genetic change in the host or pathogen. Studying only the target species or the abiotic environment would not reveal the cau...

Antiretroviral therapy may prevent excess risk of some cancers in people with HIV

... Cancer Institute, revisit the history of the AIDS epidemic and how the knowledge of cancer and immune disease... but prolonged immunosuppression. "Controlling the epidemic and ameliorating the suffering of persons living with HIV/AIDS are more urgent than ever," they writ...

HIV-1 spread through six transmission lines in the UK

Contrary to the prevailing belief that the HIV epidemic in the UK can be traced back to one source, a new ... not had a significant impact on the growth of the epidemic and that changes in sexual behaviour have been more effective in slowing the spread of the disease. ...

Canadian youth 4th highest in international obesity study

...he researcher emphasizes. "The adolescent obesity epidemic is a global issue," concludes the paper, which appears in the May issue of Obesity Reviews, a journal of the International Association for the Study of Obesity. "Increasing physical activity participation and decreasing television viewing should be t...

To Stop Evolution: New Way Of Fighting Antibiotic Resistance Demonstrated By Scripps Scientists

...tain strains of Shigella dysenteriae, the cause of epidemic dysentery, have even become resistant to all but a single drug -- the quinolone ciprofloxacin -- and may soon become completely untreatable. This is a major concern for public health because, according to the World Health Organization (WHO), large-sc...

Research into how prions act in the brain could hold the key to defeating diseases

...nated with prions that is also responsible for the epidemic of BSE or 'mad cow disease' in cattle. Research has already found that the highly-infectious prions are misfolded proteins that spread rapidly in the brain and are very difficult to destroy. It is not known what causes the proteins to develop in thi...

Ebola virus: from wildlife to dogs

... environment. These observations also show that an epidemic or sporadic cases can appear at any moment in the ...e goes up to 25 % in the untouched villages of the epidemic area, reaching 32 % in the villages where human cases have been attributed to an infected-animal sou...

Community MRSA is re-emergence of 1950s pandemic, study suggests

...antibiotic-resistant bacteria that caused a global epidemic of infections in the 1950s has re-emerged as one of the community-acquired MRSA 'superbugs', according to a study published in The Lancet tomorrow (Saturday 2 April 2005). This "re-equipping and re-emergence" of a clone that caused a pandemic 40-50 ...

Excess liver gene protects against high-fat diet

...-cholesterol, high-fat Western diet has abetted an epidemic of atherosclerotic cardiovascular disease, making it the leading cause of death in industrialized nations," said study senior author Mitchell Lazar, of the University of Pennsylvania School of Medicine. "Yet we know that some people are more suscepti...

Enlisting genomics to understand flu evolution

...e," says Lipman. "One of these can become the next epidemic strain." These co-circulating viruses can exchang... "The key thing here is that the general notion of epidemic flu is that there's a series of successions by variants of the flu we got the previous year." But th...

New Vaccine To Be Used For First Time In Polio Outbreak Response

...ntries that have reported cases of polio since the epidemic began in late 2003. ...

Understanding biases in epidemic models important when making public health predictions

...strated during the United Kingdom's foot-and-mouth epidemic of 2001, models can be useful in two ways: they ca...s period in the models, we observed very different epidemic curves," said the researcher. Conversations with Wearing and Keeling followed, alternative models we...

Inhaling large amounts of salt can cause hypertension

...strated during the United Kingdom's foot-and-mouth epidemic of 2001, models can be useful in two ways: they ca...s period in the models, we observed very different epidemic curves," said the researcher. Conversations with Wearing and Keeling followed, alternative models we...

Field of beams - Novel system uses polarized light pulses to reveal crop health

...strated during the United Kingdom's foot-and-mouth epidemic of 2001, models can be useful in two ways: they ca...s period in the models, we observed very different epidemic curves," said the researcher. Conversations with Wearing and Keeling followed, alternative models we...

Fragment of yellow fever virus may hold key to safer vaccine

...in vaccination and medical services led to a large epidemic in 2000. In collaboration with local health authorities, ter Meulen set up a viral hemorrhagic fever laboratory in Conakry to collect and evaluate blood samples from patients. In people, the mosquito-borne virus incubates for three to six days. Init...

Why were the HIV prevention trials in commercial sex workers abandoned?

One promising approach to help stem the global HIV epidemic is to give commercial sex workers an HIV medication (such as the drug tenofovir) before they have high risk sex in the hope of reducing their chances of becoming infected, an approach called "pre-exposure prophylaxis" (PREP). But activist groups, inc...

UF researchers kill resistant bugs one bandage at a time

...Those are the two classes of bacteria that are now epidemic in the U.K.," said Gregory Schultz, Ph.D., director of UF's Institute for Wound Research and one of the inventors who joined with a Gainesville-based company to develop the coating. "It's a huge problem there." A patent is pending on the researchers...

UIC developing drug for SARS

...nes for SARS, which killed almost 800 people in an epidemic in 2002-2003. On the basis of their success, the researchers have received an $8 million grant from the National Institute of Allergy and Infectious Diseases to develop protease inhibitors that would block key enzymes in the SARS virus and hamper it...

Progress on HIV/AIDS significant but insufficient

...ore AIDS-related deaths than ever before. With the epidemic expanding at an accelerating rate and on every con...d enormously wide. Unless AIDS was controlled, the epidemic would expand for decades, killing large numbers and wrecking entire societies. The global response r...

Learning how SARS spikes its quarry

...teraction. "One of the critical issues in a SARS epidemic would be to predict whether a given variant of the virus will jump species or move laterally from one human to the other. Understanding the structure of this complex will help us understand what these mutations in the spike protein mean in terms of i...

UCLA scientists reveal how Nipah virus infects cells

...ent infection and halt outbreaks before they reach epidemic proportions." Since 1998, the Nipah virus has triggered disease outbreaks in Australia, Singapore, Malaysia and Bangladesh. Animals spread the virus to people, where it causes life-threatening respiratory and neurological diseases that kill up to 70...

Survey Uncovers Surprising Attitudes Towards HIV Vaccine Research

... are the best hope for controlling the global AIDS epidemic and are confident such vaccines can be made. But while most of those surveyed felt it personally important to help support HIV vaccine research, a majority expressed reluctance to support a friend or family member’s participation in an HIV vaccine cl...

UW scientists report a new method to speed bird flu vaccine production

...at the wild viruses that spread among humans in an epidemic or pandemic. In their report, a team led by UW-Madison virologists Yoshihiro Kawaoka and Gabriele Neumann, describes an improved "reverse genetics" technique that makes it easier to make a seed virus in monkey kidney cells, which, like tiny factorie...

Hunger in America rises by 43 percent over last five years

...e weakening of the safety net in order to get this epidemic under control."According to the Center on Hunger and Poverty, food insecurity increased by nearly a million households from 2003 to 2004. Rates of hunger increased in almost every single category of household during the same time, with single mothers...

Volunteers sought for avian flu vaccine study

...ther populations. The development of a widespread epidemic of avian influenza, or "birdflu," is of growing concern throughout the world. Human cases, with a high fatality rate, have been reported in Vietnam, Thailand and Cambodia. Public health experts fear that avian flu could lead to a worldwide pandemic...

Asian immigrants in NYC not receiving HIV education at religious institutions

...que position to confront the challenges of the HIV epidemic for the communities they serve," Chin said. "The c... they come in contact, Chin said. AIDS has reached epidemic proportions in parts of the Asia-Pacific region including China and India, with an estimated 8.2 mil...

Researcher says flu responders can learn from 1918 epidemic

...rs have helped him focus on a component of the flu epidemic to gain a clear perspective on its causes, scope, legacy and lessons. As a result, Higgins has found himself growing increasingly concerned with what he describes as a "bifurcated health care system where the best, state-of-the-art care is available...

Emerging staph strains found to be increasingly deadly and deceptive

...Journal of Medicine refers in an editorial to "?an epidemic of MRSA in the community." S. aureus strains acquired in health-care settings can be challenging to resolve because of antibiotic resistance, which limits the choices for treatment. But the situation can become more serious with the newer community-...

Once-dreaded leprosy 'replaced' by tuberculosis, say researchers

...osis, though curable, is still a major, long-term, epidemic disease, with millions of new cases reported around the world each year. ...

Computer models aid understanding of antibody-dependent enhancement in spread of dengue fever

...ing vaccines. Using computational models based on epidemic theory, the researchers examined the dynamic role antibody-dependent enhancement plays in the spread of dengue viruses. They concluded that when antibody-dependent enhancement triggered small increases in transmission it gave viruses an edge over oth...

2005 AIDS figures released by WHO and UNAIDS

... down infections. But the reality is that the AIDS epidemic continues to outstrip global and national efforts to contain it,?said UNAIDS Executive Director Dr Peter Piot. “It is clear that a rapid increase in the scale and scope of HIV prevention programmes is urgently needed. We must move from small projects...

Earliest European Farmers Left Little Genetic Mark On Modern Europe

... down infections. But the reality is that the AIDS epidemic continues to outstrip global and national efforts to contain it,?said UNAIDS Executive Director Dr Peter Piot. “It is clear that a rapid increase in the scale and scope of HIV prevention programmes is urgently needed. We must move from small projects...

HIV drug resistance increasing in UK and among highest in the world

...ere in the world, prompting fears of a second wave epidemic of resistant virus, a new study claims in this wee...or a significant number of patients, the secondary epidemic of drug resistant HIV represents a major clinical and public health problem.' ...

New possibilities for flu antiviral and vaccine research emerge from 'Spanish flu' virus

...tions that would work against virulent pandemic or epidemic influenza viruses," said Tumpey. "Science is publishing this study because it provides information necessary for developing drugs and vaccines that could help prevent another global flu pandemic. We carefully considered the implications of publishin...

New malaria vaccine shows promise in early clinical trial

... most desired tool to combat the worsening malaria epidemic in many developing countries. Pierre Druilhe and colleagues (from the Institut Pasteur in Paris) have completed the first human trial of a vaccine based on MSP3, a protein present on the surface of the malaria parasite, with very encouraging results....

Expert dispels bird flu paranoia

...astern Europe but not in Australia. They fear an epidemic if this strain mutates to spread into a people-to-people virus. "We need to be very alert for bird flu in poultry because the more people who get it from birds, the higher the chance that the virus could change." Dr Doneley said the public were p...

Contagious obesity? Identifying the human adenoviruses that may make us fat

...apidly, and the etiological factors producing this epidemic have not been clearly identified." "It makes peop...y said. "The role of adenoviruses in the worldwide epidemic of obesity is a critical question that demands additional research." Ad-37 third virus implicated ...

HIV/AIDS rates in Tijuana, Mexico increasing at alarming rate

.... The United Nations AIDS Program considers an HIV epidemic to advance from a low level to a concentrated epidemic when more than 1% of the population is infected ?a figure that Tijuana may soon approach if preventi...

Sequencing our seas

...cean's deepest and darkest layers displayed almost epidemic levels of DNA associated with "jumping genes," or pieces of DNA that can move from one part of the genome to another. Microbial ecologists have had fairly rudimentary tools and techniques to bring to bear on their research to date, DeLong said. But ...

Wyoming cloud seeding experiment begins this month

...cean's deepest and darkest layers displayed almost epidemic levels of DNA associated with "jumping genes," or pieces of DNA that can move from one part of the genome to another. Microbial ecologists have had fairly rudimentary tools and techniques to bring to bear on their research to date, DeLong said. But ...

Vaccine provides 100 percent protection against avian flu virus in animal study

...cean's deepest and darkest layers displayed almost epidemic levels of DNA associated with "jumping genes," or pieces of DNA that can move from one part of the genome to another. Microbial ecologists have had fairly rudimentary tools and techniques to bring to bear on their research to date, DeLong said. But ...

Enzyme inhibitors block replication of SARS virus

...have been working on the problem of SARS since the epidemic started in 2003," Wong said. "This new class of in...ardest-hit were six Asian nations. By the time the epidemic had been controlled in 2003, the disease infected more than 8,000 people, causing 800 deaths. There ...

Learning and memory stimulated by gut hormone

...urs at school," said Horvath. "The current obesity epidemic among American school children, which to some degree has been attributed to bad eating habits in the school environment, has been paralleled by a decline of learning performance. It is however too early to speculate if hormonal links between eating a...

Ocean virus identified in human blood samples

...ely been confined to the ocean. A costly Vesivirus epidemic in hogs first was identified in 1932, and was found to be linked to uncooked fish and pork scraps fed to hogs. It's now known that that the same types of Vesiviruses ?named in part for the disease they can cause in hogs, vesicular exanthema of swine ...

Rutgers researchers find fat gene

...on. Obesity in the United States has risen at an epidemic rate during the past 20 years, a condition affecting about one-third of American adults, according to the Centers for Disease Control and Prevention. One of the national health objectives for the year 2010 is to reduce the prevalence of obesity among...

Supersized 'island' of resistance genes discovered in an infectious bacterium

... "Less than 2 years after the start of the French epidemic episode, we found the complete genome ID of the microbe involved and developed a better understanding of what to expect for the future, in terms of new antibiotic resistance," Claverie said. "This work will guide a future international effort on ide...

Access to antiretrovirals unlikely to reduce HIV infection rates

...(of Imperial College London) suggests that the HIV epidemic in poor countries will not be controlled through antiretroviral drugs alone, even if universal access is achieved. As they demonstrate in an article in the open-access international medical journal PLoS Medicine, without additional prevention methods...

How can we protect patients with weakened immune systems from influenza?

...is question becomes paramount if influenza reaches epidemic proportions and supplies of vaccine are limited. W... allow it to easily pass from person to person. An epidemic with a completely new type of virus such as this represents viral shift, and is usually far deadlier...

Avian flu transmission to humans may be higher than thought

...formation, the authors explain that in Vietnam, an epidemic of HPAI in poultry, subtype H5N1, has been ongoing...l households for subsistence farming. The current epidemic in poultry is thus not only a public health problem but also an economic drawback for the many Vietn...

Scientists develop malaria forecasting tool to predict disease risk

...te variability to indicate the level of risk of an epidemic up to five months in advance of the peak malaria s...laria epidemics. Dr Morse said: "The risk of an epidemic in tropical countries such as Botswana increases dramatically shortly after a season of good rainfal...

Dogs keep dying: Many owners unaware of toxic dog food

... near Rochester -- the sort of ground zero for the epidemic that resulted in the recall. She first realized that several dogs she was treating for liver problems in December were all eating Diamond food, and she sent food and tissue samples to Cornell, her alma mater, for testing. Screening ill dogs Ear...

Researchers discover way to transport environmental arsenic to plant leaves in new clean-up strategy

...cts that long-term exposure to arsenic could reach epidemic proportions, the PNAS paper reports. The WHO says a staggering 1 in 10 people in northern India and Bangladesh may ultimately die of diseases resulting from arsenic-related poisoning. The new strategy is part of what researchers call phytoremediatio...

New Research Shows Artificial Light at Night Stimulates Breast Cancer Growth in Laboratory Mice

...It also offers a promising new explanation for the epidemic rise in breast cancer incidence in industrialized countries like the United States. The National Cancer Institute and the National Institute of Environmental Health Sciences, agencies of the federal National Institutes of Health, provided funding to...

Congenital rubella syndrome nearly eradicated in the US

... deafness, and congenital heart disease. A rubella epidemic in the early 1960s caused more than 11,000 fetal deaths and 20,000 infants to be born with congenital rubella syndrome, but a more effective vaccine introduced in the 1970s has helped in eliminating transmission of rubella from expectant mothers to t...

Epidemic of unneeded amputations

... is shocking that in this day and age, there is an epidemic of unnecessary amputations. Amputation is a drastic procedure that takes a great physical and emotional toll on patients and their families. But physicians often jump too quickly to amputation rather than exploring medical advances that can prevent l...
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(Date:9/4/2008)...rom universities and industries around the world w...ect announced Sept. 4 to develop implantable devic...l be designed to adapt to physical changes in a pa...aturally dissolving plates, screws, stents, and ot...nd potential complications of major orthopedic, cr...
(Date:9/4/2008)...ry of the September 11 attacks approaches, the Ame...ast describing an array of technologies to help as...odcast is the sixth episode in ACS,s acclaimed Gl...ith new episodes posted twice monthly, Global Chal...n the 21st Century, and explains how chemists and ...
(Date:9/4/2008)... known as HACNS1, that may have contributed to the...and possibly also modifications in the ankle or fo...g to a paper published in Science on Sept. 5, 20...e of the existence of human-specific gene enhancer...me. , Dr. Shyam Prabhakar, first author of the...
(Date:9/4/2008)...of Cincinnati (UC) implicates the primary chemical...a risk factor for metabolic syndrome and its conse...man fat tissues, the UC team found that BPA suppre...ble for regulating insulin sensitivity in the body...r metabolic syndrome. , Metabolic syndrome is a...
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