SWORD - South West Open Research Deposit - ORBioM (Open Research BioSciences Meeting): An evaluation of the Monospot test to diagnose Epstein-Barr virus associated Infectious Mononucleosis (EBV-IM)
 

Presenter Information

Patrick NaughtonFollow

ORCID

https://orcid.org/0000-0001-7274-2650

Department

Biological Sciences

Year of Study

6

Full-time or Part-time Study

Part-time Study

Level

Postgraduate

Presentation Type

Oral Presentation

Supervisor

Dr Brigid Lucey

Abstract


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Abstract

Aim

To calculate the performance characteristics of the Clearview® IM II Monospot [heterophile antibody (HA) test] to determine Infectious Mononucleosis associated with Epstein-Barr Virus (EBV-IM) in clinically suspect patients.

Methods

The laboratory results of 420 patients tested for HAs over a two-year period (2018-2019) in a single testing centre in Ireland were analysed. A novel multivariant test (reference) model was designed to determine true positive and negative EBV-IM cases. A cohort of 50 Monospot results were compared against this reference model and the test’s performance characteristics determined.

Results

The Monospot test proved reasonably specific but insensitive in the detection of EBV-IM; 22 (85%) of the 26 patients without EBV-IM tested negative, 13 (54%) of the 24 patients with EBV-IM tested positive.

Discussion/Conclusion

The Monospot is a quick, easy to use, inexpensive test for detection of EBV-IM, with reasonably high specificity and low sensitivity. Only clinically suspect cases with demonstrable indicative markers warrant HA testing; negative results should be followed up with specific EBV serology to ensure diagnosis of heterophile negative cases.

Keywords:

Epstein-Barr virus, infectious mononucleosis, heterophile antibodies, atypical lymphocytes, Monospot test

Start Date

16-6-2025 9:30 AM

End Date

16-6-2025 9:45 AM

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Jun 16th, 9:30 AM Jun 16th, 9:45 AM

An evaluation of the Monospot test to diagnose Epstein-Barr virus associated Infectious Mononucleosis (EBV-IM)


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Abstract

Aim

To calculate the performance characteristics of the Clearview® IM II Monospot [heterophile antibody (HA) test] to determine Infectious Mononucleosis associated with Epstein-Barr Virus (EBV-IM) in clinically suspect patients.

Methods

The laboratory results of 420 patients tested for HAs over a two-year period (2018-2019) in a single testing centre in Ireland were analysed. A novel multivariant test (reference) model was designed to determine true positive and negative EBV-IM cases. A cohort of 50 Monospot results were compared against this reference model and the test’s performance characteristics determined.

Results

The Monospot test proved reasonably specific but insensitive in the detection of EBV-IM; 22 (85%) of the 26 patients without EBV-IM tested negative, 13 (54%) of the 24 patients with EBV-IM tested positive.

Discussion/Conclusion

The Monospot is a quick, easy to use, inexpensive test for detection of EBV-IM, with reasonably high specificity and low sensitivity. Only clinically suspect cases with demonstrable indicative markers warrant HA testing; negative results should be followed up with specific EBV serology to ensure diagnosis of heterophile negative cases.