Coccidioidomycosis is a common cause of communityacquired pneumonia (CAP) in disease-endemic areas. Because testing rates infl uence interpretation of reportable-disease data and quality of CAP patient care, we determined the proportion of CAP patients who were tested for Coccidioides spp., identifi ed testing predictors, and determined the proportion of tested patients who had positive coccidioidomycosis results. Cohort studies to determine the proportion of ambulatory CAP patients who were tested in 2 healthcare systems in metropolitan Phoenix found testing rates of 2% and 13%. A case-control study identifi ed signifi cant predictors of testing to be age >18 years, rash, chest pain, and symptoms for >14 days. Serologic testing confi rmed coccidioidomycosis in 9 (15%) of 60 tested patients, suggesting that the proportion of CAP caused by coccidioidomycosis was substantial. However, because Coccidioides spp. testing among CAP patients was infrequent, reportable-disease data, which rely on positive diagnostic test results, greatly underestimate the true disease prevalence.
A surveillance system that involved multiple ICD-9 codes was sufficiently sensitive to identify most cases of invasive aspergillosis; however, the poor PPV of ICD-9 codes means that this approach is not adequate as the sole tool used to classify cases. Screening ICD-9 codes to trigger a medical record review might be a useful method of surveillance for invasive aspergillosis and quality assessment, although more investigation is needed.
Although preliminary data suggest that fluconazole is efficacious to prevent candidemia in a subset of neonates, this practice is not used widely by clinicians who care for very low birth weight infants. Additional efficacy studies should address the emergence of antifungal resistance or clarification of criteria to initiate prophylaxis, including the role of surveillance cultures.
The initial karaya ostomy bag was likely to be the source of Rhizopus infection, and prolonged exposure before the first ostomy bag change might have precipitated infection in these susceptible individuals. Karaya might contain opportunistic molds that can pose an infectious risk among susceptible persons.
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