Milwaukee swine flu testing results publishedJune 16, 2009Medical College researchers first to publish epidemiologic description of the country's largest swine origin influenza (H1N1) outbreak in Milwaukee Researchers at The Medical College of Wisconsin in Milwaukee published the first initial paper describing the Milwaukee prevalence of the largest outbreak of novel swine origin influenza virus (S-OIV) in America in the June 11, 2009, online issue of Viruses. This corresponded to the announcement by World Health Organization of the first influenza pandemic in 41 years. Beginning April 17, 2009, increased numbers of novel swine origin influenza A (H1N1) virus (S-OIV) cases began appearing in the U.S. As part of a rapid clinical and public health response, the Medical College and its two affiliated teaching hospitals - Children's Hospital of Wisconsin (CHW) and Froedtert Hospital - established full genetic subtyping of all influenza A viruses identified in patient samples sent to the respective clinical laboratories. Froedtert Hospital's testing is performed by Dynacare Laboratories. The Medical College's Midwest Respiratory Virus Program (MRVP) used its newly developed multiplex, rapid diagnostic testing for influenza, to subtype all influenza A samples obtained during the 16-week period prior to April 28 and the first four weeks of the subsequent pandemic. According to Kelly J. Henrickson, M.D., professor of pediatrics and microbiology, "Continued rapid local surveillance in Milwaukee should help define important epidemiologic and virologic characteristics during the early phase of this pandemic to help facilitate current and future public health responses." During the first four weeks of the epidemic, 679 of 3,726 (18.2 percent) adults and children tested for influenza A were identified with S-OIV infection. S-OIV was confirmed on Day Two of instituting subtype testing and within four days of reports of national cases of S-OIV. Of the 2,678 children and adolescents from whom respiratory specimens were obtained, 598, or 22.3 percent, were positive for influenza A. Of these 598 children and adolescents, 589 or 98.5 percent, identified as S-OIV. During the same four week period, 94 of 1,048 adults, or 8.9 percent, tested positive for influenza A, with 90, or 95.7 percent, having S-OIV. Dr. Henrickson, who directs the MRVP and practices at CHW, and other researchers at other institutions have developed a number of multiplex, rapid, diagnostic tests for respiratory viruses and pneumonia agents including complete influenza subtyping assays. The genetic tests can identify the majority of human and animal influenza strains and can distinguish between sub types such as H1N1, H3N2, H5N1, H7N2, and H9N2. In response to the federal government's high priority for accelerated research to combat bird flu and bioterrorism, the Medical College and Dr. Henrickson have been awarded five grants and subcontracts totaling more than $12 million from the National Institutes of Health (NIH) and Center for Disease Control and Prevention (CDC) to develop rapid diagnostic devices to test for avian flu and the majority of potential bioterrorism agents. The Medical College and Children's Research Institute participated in carrying out the work of these grants. The test being offered by the MRVP has been approved by the Clinical Laboratory Improvements Act and awaits FDA approval. Medical College of Wisconsin |
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| Related Swine Flu Current Events and Swine Flu News Articles Sneezing in times of a flu pandemic The swine flu (H1N1) pandemic has received extensive media coverage this year. The World Health Organization, in addition to providing frequent updates about cases of infection and death tolls, recommends hyper vigilance in daily hygiene such as frequent hand washing or sneezing into the crook of our arms. Pandemic flu vaccine campaigns may be undermined by coincidental medical events The effectiveness of pandemic flu vaccination campaigns - like that now underway for H1N1 - could be undermined by the public incorrectly associating coincidental and unrelated health events with the vaccines. TGen seeks emergency FDA approval of new swine flu test The Phoenix-based non-profit Translational Genomics Research Institute (TGen) announced today that, along with a business collaborator, it will submit a request to the U.S. Food and Drug Administration for emergency use of a new test to diagnose the 2009 H1N1 swine flu virus. Swine flu vaccine must be free and safe for high uptake Almost half of adults surveyed in Summer 2009 in Hong Kong (45%) say they would take up free swine flu vaccination. Triple-Combo Drug Shows Promise Against Antiviral-Resistant Swine Flu, UAB Researcher Says An experimental drug cocktail that includes three prescriptions now widely available offers the best hope in developing a single agent to treat drug-resistant H1N1 swine flu, says a virology researcher in the University of Alabama Birmingham (UAB) Division of Pediatric Infectious Diseases. Will genomics help prevent the next pandemic? This week, the Public Library of Science, an open-access publisher, presents the "Genomics of Emerging Infectious Disease," a collection of essays, perspectives, and reviews that explores how genomics-with all its associated tools and techniques-can provide insights into our understanding of emerging infectious disease. Important new novel 2009 H1N1 flu advisory for cardiopulmonary transplantation Each year 3-5 million people have severe cases and 250-500,000 die from complications of seasonal influenza world-wide. This year, the novel 2009 H1N1 (nH1N1) influenza, previously called swine flu, has reached pandemic status. Major swine flu outbreak at US Air Force Academy, unique opportunity to study virus behavior With the 2009 influenza season upon us, characterization of the epidemiology and duration of shedding for the nH1N1 virus is critical. Investigators from the U.S. Air Force Academy and the U.S. Air Force School of Aerospace Medicine Epidemiology Consult Service capitalized on a unique opportunity to gain valuable insights about the natural behavior of the nH1N1 virus, including shedding patterns, during a recent large-scale swine flu outbreak at the U.S. Air Force Academy (USAFA). Earlier flu viruses provided some immunity to current H1N1 influenza, study shows University of California, Davis, researchers studying the 2009 H1N1 influenza virus, formerly referred to as "swine flu," have identified a group of immunologically important sites on the virus that are also present in seasonal flu viruses that have been circulating for years. Flu surveillance boosts control, treatment options, says UAB travel-clinic chief Because pandemics unfold in unpredictable ways, surveillance of travel-related illness is among the most powerful tools health officials and doctors can use to detect and respond to new pathogens like the novel H1N1 influenza, says the physician who heads the University of Alabama at Birmingham (UAB) Travelers' Clinic. More Swine Flu Current Events and Swine Flu News Articles |
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