Public health

  • Public healthBird flu in live poultry markets source of viruses causing human infections

    Following analysis of H7N9 influenza viruses collected from live poultry markets in China, it was found that these viruses circulating among birds were responsible for human infections. These results provide a basis for the government to take actions for controlling this public health threat.

  • Food safetyStudying botulinum genome to understand botulism harm

    The toxin that causes botulism is the most potent that we know of. Eating an amount of toxin just 1,000th the weight of a grain of salt can be fatal, which is why so much effort has been put into keeping Clostridium botulinum, which produces the toxin, out of our food.

    • University of Florida Clinical Toxicology Online Graduate Course. Chemical Weapons of Mass Destruction. Arm yourself with knowledge.
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  • PandemicsPotential flu pandemic looms

    In the summer of 1968, a new strain of influenza appeared in Hong Kong. This strain, known as H3N2, spread around the globe and eventually killed an estimated one million people. A new study reveals that there are many strains of H3N2 circulating in birds and pigs that are genetically similar to the 1968 strain and have the potential to generate a pandemic if they leap to humans.

  • First responsePennsylvania emergency professionals receive WMD training

    The Center for Domestic Preparedness (CDP) in Alabama hosted more than a hundred emergency professionals from the Pennsylvania South Central Mountains Regional Task Force’s Health and Medical Committee for in-depth response-to-WMD training.

  • MalariaRendering mosquitoes immune to malaria parasites

    Scientists have established an inheritable bacterial infection in malaria-transmitting Anopheles mosquitoes that renders them immune to malaria parasites. The strategy holds promise for malaria control efforts.

  • Food securityIllnesses in U.S. on the rise as a result of decline in foreign food inspections

    More Americans get sick every year as a result of food-borne pathogens. The reason: inspections at foreign food factories shipping food and food ingredients to the United States have declined in recent years, and border inspections of food coming into the country could be next to be reduced. Experts say this decline in inspections is especially worrisome since Americans consume more imported food – or food made with imported ingredients – every year, and foreign food production and processing facilities often do not meet U.S. sanitation and hygiene standards.

  • WaterSilica particles purify water by acting as oil magnets

    Engineers develop an innovative method designed to purify water through the rapid removal of oily pollutants. The technology involves the deployment of surface engineered silica particles, which act as oil magnets in water, adsorbing oil, yet repelling water.

  • Infectious diseaseEbola's secret weapon revealed: its ability to short-circuit the immune system

    Researchers have discovered the mechanism behind one of the Ebola virus’ most dangerous attributes: its ability to disarm the adaptive immune system. Scientists determined that Ebola short-circuits the immune system using proteins that work together to shut down cellular signaling related to interferon. Disruption of this activity, the researchers found, allows Ebola to prevent the full development of dendritic cells that would otherwise trigger an immune response to the virus.

  • STEM educationSchools do not offer students sufficient practical science experience

    New evidence shows that a worrying number of students are not experiencing a complete and authentic education in the sciences, due to a lack of resources for practical work. Secondary schools reported not having enough of some of the most commonly used equipment, such as microscopes, eye protection, and connecting leads for circuits. The research also shows that many secondary schools lack essential support from qualified technicians to carry out practical work.

  • Food securityHorse meat in the human diet

    Horse long has been on menus in continental Europe, sold from shops that often advertise with a carved horse head on the store front.A chemist explains the testing for horse DNA in food products, and discusses the concerns about selling and eating horse meat in the United States.

  • ExplosivesNew fertilizer can be used to grow food – but not build bombs

    Ammonium nitrate fertilizer is used in agriculture, but when mixed with a fuel such as diesel, it is highly explosive. It was used in about 65 percent of the 16,300 homemade IEDs in Afghanistan in 2012.About 1,900 troops were killed or wounded in IED attacks in 2012, 60 percent of American combat casualties. There have been more than 17,000 global IED incidents in 123 countries in the past two years. Timothy McVeigh used ammonium nitrate in Oklahoma City in 1995. Scientists have developed a fertilizer that helps plants grow but cannot detonate a bomb.

  • Food securityVolatility of food prices is still a mystery

    Riots, political instability, and a spike in malnourishment cases blighted the years 2007 and 2008, particularly in developing countries. The cause was a sudden surge in global food prices, with rice eventually rising several hundred per cent as importing countries simply could not get enough of this basic foodstuff.Food market volatility has yet to be understood, and there is no definite proof that it is due to speculators.

  • BudgetOffice implementing Obamacare avoids furloughs

    Gary Cohen, the director of the Center for Consumer Information and Insurance Oversight, said Wednesday that his office will not be furloughing its workers due to the federal budget cuts known as the sequester. His office is in charge of implementing most of President Obama’s healthcare law.

  • SuperbugsPreventing bugs from becoming antibiotic-resistant

    About 440 000 new cases of drug-resistant tuberculosis emerge annually, causing around 150 000 deaths. New research finds that bacteria can evolve resistance more quickly when stronger antibiotics are used. The rate of evolution of antibiotic resistance speeds up when potent treatments are given because resistant bacterial cells flourish most during the most aggressive therapies.

  • SuperbugsFighting superbugs with a new genre of antibodies

    In an advance toward coping with bacteria that shrug off existing antibiotics and sterilization methods, scientists are reporting development of a new family of selective antimicrobial agents that do not rely on traditional antibiotics.