A cross-sectional survey of 210 healthcare workers at a pediatric teaching hospital was performed to assess knowledge of published guidelines for proper measurement and documentation of tuberculin skin test Results. We conclude that many healthcare workers have inadequate knowledge for optimal measurement and documentation of tuberculin skin test results.

Although patients colonized or infected with methicillin-resistant Staphylococcus aureus have been placed on contact isolation for many years, more recent guidelines recommend enhanced control measures, such as routine active surveillance. We report here the results of a survey of 70 hospitals in North Carolina with regard to current management issues surrounding methicillin-resistant S. aureus.

We describe a healthcare worker with a previously positive tuberculin skin test result who developed active tuberculosis. An investigation revealed 280 potential contacts, 3 of whom had positive tuberculin skin test results. Our experience demonstrates the potential benefits of therapy for latent tuberculosis infection as a component of a tuberculosis-control program.

We implemented the QuantiFERON-TB Gold (QFT-G) In-Tube test to identify latent tuberculosis infection among potential employees prior to employment. The rates of indeterminate QFT-G In-Tube test results were higher than expected and prompted an investigation that led to successful interventions (eg, manual vortexing before incubation and the use of a modified in-tube method). The tracking of indeterminate results is suggested as an important quality control measure.

We compared the results of the tuberculin skin test with the results of the QuantiFERON-TB Gold In-Tube (QFT-GIT) assay among 182 low-risk healthcare workers. Overall agreement and specificity were high, but the tests did not agree on positive results. Only 2 of 5 positive QFT-GIT assay results could be confirmed with repeat analyses. Indeterminate results were associated with potential immunosuppression.

This retrospective cohort study found that syringes prefilled with heparin flush solution caused an outbreak of Serratia marcescens bloodstream infection at an outpatient treatment center in Texas in 2007. The epidemiologic study supported this conclusion, despite the lack of microbiologic evidence of contamination from environmental and product testing. This report underscores the crucial contributions that epidemiologic studies can make to investigations of outbreaks that are possibly product related.

Micrococcus bacteria are frequently isolated from blood cultures and could represent a cause of infections associated with medical devices, particularly in immunocompromised patients; however, there is a lack of information on the management of micrococcal bacteremia. We report what is, to our knowledge, the largest series of cases of micrococcal bacteremia ever studied and the great impact of catheter removal on its outcome.

We performed a prospective prevalence survey of methicillin-resistant Staphylococcus aureus (MRSA) carriage in the nares of 50 medical and 50 surgical house officers. None of the 50 internal medicine house officers and 5 of the 50 general surgery house officers had MRSA nares colonization (P = .03). None of the MRSA isolates recovered from the surgical house officers were identical.