Rheumatoid arthritis

Neoehrlichia mikurensis is uncommon in rheumatological patients receiving tumour necrosis factor inhibitors and in blood donors: a retrospective cohort study

RMD OpenPublished Retrospective cohort study

Authors' conclusion

N. mikurensis infection does not appear to represent a prevalent risk in Danish rheumatological patients receiving TNFi or in blood donors.

Study context

Population
Rheumatological patients receiving tumour necrosis factor inhibitors (TNFi) (Danish Rheumatological Biobank, DANBIO) and healthy blood donors (Danish Blood Donor Study), 2015–2022
Participants
400 vs 400
Exposure
Rheumatological patients receiving TNFi and healthy blood donors
  • TNFin = 400
  • Blood donorsn = 400
Outcome
Prevalence of N. mikurensis (DNA by real-time PCR targeting groEL gene, one plasma sample per individual)

Main finding

As reported in the abstract

N. mikurensis DNA (real-time PCR targeting groEL gene)
  • N. mikurensis DNA was not detected in any samples from patients or blood donors

Observational data: associations, not effects.

Original publication

Neoehrlichia mikurensis is uncommon in rheumatological patients receiving tumour necrosis factor inhibitors and in blood donors: a retrospective cohort study. RMD Open. Published 4 January 2024. doi:10.1136/rmdopen-2023-003660

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