• Japanese attenuated smallpox vaccine shows promise in U.S. trial

    An attenuated smallpox vaccine that was developed in Japan in the 1970s compared well with a conventional smallpox vaccine in a phase 1-2 clinical trial in the United States

  • Mapping the spread of drug-resistant influenza

    The movie “Contagion” is not based on real events, but it is not science fiction, either: certain strains of influenza are becoming resistant to common treatments; a team of researchers map out how this phenomenon is happening globally

  • Biological weapons: U.S. must not repeat the failure of imagination

    Joel McCleary, a biological weapons expert, is the chairman and co-founder of Q Global and the founder of PharmAthene; he argues that the U.S. government has not done enough to protect the nation against a biological attack, warns of the need for presidential leadership, and underscores the dangers of biological weapons

  • Anthrax forensics help ID source of Haitian cholera outbreak

    Researchers have discovered the source of the deadly cholera outbreak in Haiti that killed more than 6,000 people and sickened 300,000; the study determined that Nepalese peacekeepers brought cholera to Haiti, when they came to assist the country’s rebuilding efforts following the massive earthquake in January 2010

  • How did the deadly plague bacterium develop?

    In a relatively short time — in evolutionary terms — a bacterium that causes mild stomach irritation evolved into a deadly pathogen responsible for the most devastating pandemics in human history; how did the mild-mannered Yersinia pseudotuberculosis become Yersinia pestis, more commonly known as the Plague? New study explains what happened — and sheds light on fighting deadly diseases

  • Experts anxious about appearance of a variant strain of Bird Flu

    Since 2003 H5N1 has killed or forced the culling of more than 400 million domestic poultry and caused an estimated $20 billion of economic damage across the globe before it was eliminated from most of the sixty-three countries infected at its peak in 2006; the UN health agency now calls for increased preparedness and surveillance against a re-emerging variant strain of H5N1

  • The malaria mosquito is disappearing – researchers wonder why

    The incidence of malaria in many African countries south of the Sahara is falling rapidly; a research group has discovered that the mosquito carrying the malaria parasite has practically disappeared from villages without organized mosquito control; there are several hypotheses about the cause of the decline, but without proper data researchers cannot say whether malaria is being eradicated or whether it is just resting up before returning with renewed vigor

  • Common bacterium stops mosquitoes from transmitting Dengue virus

    Strains of a bacterium commonly found in fruit flies can prevent the Aedes aegypti mosquito from transmitting the virus that causes dengue fever, researchers have found; the discovery could lead to a more effective way to control dengue worldwide

  • Overcoming dangerous antibiotic-resistant bacteria

    Scientists have successfully reengineered an important antibiotic to kill the deadliest antibiotic-resistant bacteria; the compound could one day be used clinically to treat patients with life-threatening and highly resistant bacterial infections

  • Source of Haitian cholera outbreak identified

    Employing technology that reads the entire DNA code, researchers have pinpointed the source of a cholera outbreak in Haiti that killed more than 6,000 people and sickened 300,000; the researchers also suggest how to prevent future outbreaks when international aid is rushed to disaster areas

  • How did H1N1 become an pandemic?

    The last century has seen two major pandemics caused by the H1N1 virus — the Spanish Flu in 1918 and 2009’s Swine Flu scare, which had thousands travelling with surgical masks and clamoring for vaccination; scientists, however, did not know what distinguished the Swine Flu from ordinary influenza in pigs or seasonal outbreaks in humans, giving it the power to travel extensively and infect large populations; until now

  • Medical silver bullet: New drug cures most viral infections

    Researchers at MIT’s Lincoln Lab have developed technology that may someday cure the common cold, influenza, and other ailments; the researchers tested their drug against fifteen viruses, and found it was effective against all of them — including rhinoviruses that cause the common cold, H1N1 influenza, a stomach virus, a polio virus, dengue fever, and several other types of hemorrhagic fever

  • Innovative biosensor for rapid virus field tests

    Relying on a novel DNA-based bio-chemo-physical conversion method, a new bio-detection device is able to detect harmful bacteria, such as E. coli, salmonella, and staphylococcus, on site, within thirty minutes; it can be adapted to cover such deadly viruses as SARS, H5N1 flu, and swine flu viruses; it can also be designed to monitor possible biological attack from anthrax, smallpox, cholera, and more

  • Gold nanoparticles help to diagnose flu in minutes

    Arriving at a rapid and accurate diagnosis is critical during flu outbreaks, but until now, physicians and public health officials have had to choose between a highly accurate yet time-consuming test or a rapid but error-prone test; University of Georgia researchers offer a solution

  • To stem the spread of disease schools reconsidering attendance policies

    Due to public health concerns, a growing number of schools across the United States have stopped giving students awards for their attendance record; in an effort to maintain their attendance records, many students likely went to school while sick, greatly increasing the risk of infecting others; following the H1N1 flu outbreak in 2009, many school districts across the United States began reconsidering their attendance policies and many eventually chose to stop awarding students with perfect attendance records