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What are the recommendations regarding spacing of vaccines and PPD testing?

April 26, 2017PPD recommendations spacing Testing vaccines

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What are the recommendations regarding spacing of vaccines and PPD testing?

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All vaccines may be given on the same day as a TB skin test, or any time after a TB skin test is applied. However, if MMR has been given, and one or more days have elapsed, we recommend waiting 4-6 weeks before giving a routine TB skin test. No information on the effect of varicella or other live injected vaccines on a TB skin test is available. Until such information is available, it is prudent to apply rules for spacing measles vaccine and TB skin testing to these vaccines. There is no evidence that inactivated vaccines interfere with PPD response.