id author title date pages extension mime words sentences flesch summary cache txt cord-269564-r5mmsnbx Hans, Diana Rapidly Fatal Infections 2008-05-31 .txt text/plain 7549 426 46 Reports have suggested a mortality rate of 30% to 70% despite aggressive treatment [35] TSS is most commonly caused by Staphylococcus aureus and group A streptococcus. Unfortunately, complicated group A streptococcus infections are shown to have a high mortality rate despite aggressive antibiotic therapy, and penicillin has been shown to have limited effects if not initiated early in the disease. Fifty-three percent of the patients were positive for MRSA, and the risk factors associated with colonization included recent antibiotic use (within 3 months), hospitalization within the past year, skin or soft tissue infection on admission, and HIV infection [68] . PVL-positive S aureus pneumonia typically occurred in younger patients (median age, 14.8 years) who were previously healthy, and 75% were found to have had a viral infection in the preceding days. Two deadly viral infections that have emerged in recent years include severe acute respiratory syndrome (SARS) and influenza A (H5N1), also known as avian influenza or bird flu. ./cache/cord-269564-r5mmsnbx.txt ./txt/cord-269564-r5mmsnbx.txt