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Utah Public Health Laboratory

Yersina pestis Antibodies (Plague)

Fee: Please refer to fee schedule

Ordering Recommendation

All clients – Contact Utah Public Health Laboratory prior to submitting specimens.


Monday – Thursday as required


Hemagglutination per LRN Protocols


1-7 days

Specimen Required

  • Collect:Serum or plasma; at least 1 mL in a sterile container.
  • Specimen Preparation: an acute phase specimen should be collected as soon as possible after onset of disease. A convalescent phase specimen should be collected >28 days after the acute specimen.
  • Storage/Transport Conditions:refrigerate at 2 to 8°C
  • Unacceptable Conditions:hemolyzed and/or lipemic specimens
  • Remarks:
  • Stability:


Positive or Negative

Interpretive Data

Negative for antibodies to Yersinia pestis F1 antigen.

Positive for antibodies to Yersinia pestis F1 antigen.

Serum titer


It is mandatory that UPHL be contacted prior to submitting samples for testing.

Cross References

American Society of Microbiology Sentinel Level Clinical Laboratory Guidelines