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Pérez-Rodríguez FJ, Cherpillod P, Thomasson V, Vetter P, Schibler M. Identification of a measles variant displaying mutations impacting molecular diagnostics, Geneva, Switzerland, 2023. Euro Surveill 2024; 29. [PMID: 38304951 PMCID: PMC10835752 DOI: 10.2807/1560-7917.es.2024.29.5.2400034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024] Open
Abstract
Real-time PCR is one of the most widely used techniques to diagnose measles cases. Here we report measles virus variants with three genetic mutations in the reverse primer annealing site of a widely used PCR. The mutations result in a slight loss of the PCR sensitivity. Variants bearing the three mutations presently circulate in different countries since at least the end of 2021. Our findings highlight the usefulness of molecular surveillance in monitoring if oligonucleotides in diagnostic tests remain adequate.
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Affiliation(s)
- Francisco-Javier Pérez-Rodríguez
- Geneva Center for Emerging Viral Diseases, Geneva University Hospitals, Geneva, Switzerland
- National Measles and Rubella Reference Laboratory (CNRRR), Geneva University Hospitals, Geneva, Switzerland
- Laboratory of virology, Laboratory Medicine Division, Geneva University Hospitals, Geneva, Switzerland
| | - Pascal Cherpillod
- Geneva Center for Emerging Viral Diseases, Geneva University Hospitals, Geneva, Switzerland
- National Measles and Rubella Reference Laboratory (CNRRR), Geneva University Hospitals, Geneva, Switzerland
- Laboratory of virology, Laboratory Medicine Division, Geneva University Hospitals, Geneva, Switzerland
| | - Valentine Thomasson
- Laboratory of virology, Laboratory Medicine Division, Geneva University Hospitals, Geneva, Switzerland
| | - Pauline Vetter
- Geneva Center for Emerging Viral Diseases, Geneva University Hospitals, Geneva, Switzerland
- Laboratory of virology, Laboratory Medicine Division, Geneva University Hospitals, Geneva, Switzerland
| | - Manuel Schibler
- Geneva Center for Emerging Viral Diseases, Geneva University Hospitals, Geneva, Switzerland
- National Measles and Rubella Reference Laboratory (CNRRR), Geneva University Hospitals, Geneva, Switzerland
- Laboratory of virology, Laboratory Medicine Division, Geneva University Hospitals, Geneva, Switzerland
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