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Appendix F2 - Figure 3

Supplement F: Laboratory Guidance

Public Health Guidance for Community-Level Preparedness and Response to Severe Acute Respiratory Syndrome (SARS) Version 2/3

Figure 3 - SARS-CoV Specimen Testing Guidelines: Serologic Testing

Serologic Testing chart, see text version below

Text version of Figure 3


Prepare two aliquots:

  1. To test for SARS-CoV
  2. For repeat testing

Store remaining sample.

Perform SARS EIA

  • If control guidelines are not met, repeat test.
  • If Neg result, specimen is Neg for SARS-CoV.1
    • Testing for other pathogens may be indicated.
  • If Pos result, repeat test.
    • send aliquot to CDC for confirmatory testing. Include copy of data.
    • If Neg result, additional testing may be advised.1
    • If Pos result x2, this is presumptive identification of SARS-CoV.


  1. A negative result does not rule out SARS-CoV infection. See Appendix F7 for more information.
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