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The MMWR is NOT embargoed this week.
Notices to Readers Use of Onsite Technologies for Rapidly Assessing Environmental Bacillus anthracis Contamination on Surfaces in Buildings Contact: Division of Media Relations Reports and Recommendations School Health Guidelines to Prevent Unintentional Injuries and Violence Contact: Katie Baer Synopsis for December 7, 2001Update: Investigation of Bioterrorism-Related Anthrax Connecticut, 2001As of December 5, a total of 11 inhalational anthrax cases have been identified in the United States.
The source of exposure to Bacillus anthracis for the inhalational anthrax cases in Connecticut and New York City remain under investigation by public health and law enforcement officials. No direct exposure to B. anthracis-containing envelopes has been identified for these cases. In the absence of definitive evidence indicating how transmission occurred, infection from a cross-contaminated envelope is one hypothesis being considered by investigators. Cross-contamination could also explain how B. anthracis spores were spread to some postal facilities that did not process the envelopes addressed to the U.S. senators. Update: Unexplained Deaths Following Knee Surgery Minnesota, 2001This report is an update on the investigation involving the Minnesota patients who died unexpectedly following elective knee surgery.
The Minnesota Department of Health (MDOH) with the assistance of CDC has been conducting this investigation. The epidemiologic investigation showed no common causes of death for the three victims. However, lab testing has shown the presence of microorganism Clostridium sordelli in the blood of one of the patients. Test conducted on the other two patients for an infectious cause of death were negative. The investigation is now focused on the possible contamination of the allograft tissue received by the patient diagnosed with the bacterial infection. Clinicians are encouraged to report infections involving allograft tissue to the Food and Drug Administrations MedWatch system. Also, clinicians should contact their State health department and CDCs Division of Healthcare Quality Promotion. Septic Arthritis Following Anterior Cruciate Ligament Reconstruction Using Tendon Allografts Florida and Louisiana, 2000This report describes four cases of knee infection in patients who had reconstructive knee surgery using human donor tissues (allografts).
This investigation showed no detectible lapses in infection control procedures, but found that contaminated allografts were the most likely source of the infections. Some types of allografts are not sterilized using conventional sterilization methods in order to preserve their functional and mechanical properties. Effective sterilization methods, that do not adversely affect the function of grafted musculoskeletal tissue, are needed to prevent allograft-related bacterial infections. Current regulations have focused on screening donors to prevent transmission of such viruses as HIV and hepatitis. Standardized practices for screening, disinfecting, or discarding potentially contaminated allografts, and mechanisms to ensure adherence to quality control standards are needed. Influenza Activity United States, 200102 SeasonFrom September 30 November 24, influenza activity in the U.S. was at low levels.
During this time period, 16 states have reported influenza isolates but the weekly percent of respiratory specimens testing positive for influenza is low, ranging from 0.4% to 1.7% (compared to 24%-33% testing positive at the peak of the previous 3 seasons). So far this season, the weekly percent of patient visits to sentinel physicians for influenza-like illness has not exceeded baseline and the percentage of deaths due to pneumonia and influenza as reported by the 122 Cities Mortality Reporting System has not exceeded the epidemic threshold. The majority of influenza viruses isolated were influenza A (H3N2) and were well matched by the influenza A (H3N2) vaccine strain. Vaccine supplies are now plentiful and are available for immediate shipment from the three U.S. licensed manufacturers (Aventis Pasteur, Wyeth-Lederle, and Henry Schein/GIV for Evans Vaccines).
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CDC Home | Search | Health Topics A-Z This page last reviewed December 7, 2001 Centers for Disease Control and Prevention |