SEARCH is a
network of voluntary participants (i.e., hospitals, state health
departments, professional organizations, and clinical microbiology
laboratories) who have joined together to report the isolation
of S. aureus with reduced susceptibility to vancomycin.
Coordinated by the CDC’s Division
of Healthcare Quality Promotion, SEARCH serves two purposes.
First, it enhances the ability to detect bacterial pathogens,
that have high public health importance but are difficult to detect
through traditional surveillance systems. Second, it provides
confirmatory MIC testing when local testing is not feasible. Before
requesting confirmatory MIC testing by CDC, laboratories should
undertake the following steps:
- Notify your state and/or local health
department
- Check the purity of the isolate and
review results.
- Test the isolates on two separate
occasions using acceptable methods to detect a vancomycin MIC
of >4 µg/ml after 24 hours of incubation. Acceptable
methods for detection include: MIC methods with 24 hour incubation
(e.g., MicroScan “overnight test”, Vitek, Etest,
Pasco, Sensititre, agar dilution) and screening using a vancomycin
screen plate (see laboratory detection)
- When these criteria are met, send
an email to SEARCH@cdc.gov
with your name, title, telephone number, laboratory or facility
name, and a description of your testing methods and results.
Thank you for your interest and assistance
in combating this important public health problem.
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