0000000000777129

AUTHOR

Peter Wilhelmsson

0000-0002-9200-2964

showing 3 related works from this author

A divergent Anaplasma phagocytophilum variant in an Ixodes tick from a migratory bird; Mediterranean basin

2020

Anaplasma phagocytophilum (AP) has vast geographical and host ranges and causes disease in humans and domesticated animals. We investigated the role of northward migratory birds in the dispersal of tick-borne AP in the African-Western Palearctic. Ticks were collected from northward migratory birds trapped during spring migration of 2010 at two localities in the central Mediterranean Sea. AP DNA was detected by PCR (gltA and 16S rRNA) and variant determination was performed using ankA sequences. In total, 358 ticks were collected. One of 19 ticks determined as Ixodes was confirmed positive for AP DNA. The tick was collected from a woodchat shrike (Lanius senator senator) trapped in Greece, a…

Bird migration040301 veterinary sciencesEpidemiologyHyalomma marginatum030231 tropical medicineBird migrationZoologyHyalomma marginatum s.l.Infectious and parasitic diseasesRC109-216Environmental Science (miscellaneous)TickMicrobiology0403 veterinary science03 medical and health sciences0302 clinical medicineankAparasitic diseasesAfrican-Western Palearctic region16s rRNALanius senatorbiology16s rRNA; African-Western Palearctic region; Anaplasma phagocytophilum; Bird migration; Hyalomma marginatum s.l.; Ixodes; ankAIxodesanaplasma phagocytophilumixodes04 agricultural and veterinary sciencesbiology.organism_classificationbacterial infections and mycosesAnaplasma phagocytophilumMikrobiologiankaEnzooticIxodesafrican-western palearctic regionHyalommabird migrationhyalomma marginatum s.l.16s rrnaAnaplasma phagocytophilum
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Molecular detection of Borrelia burgdorferi sensu lato – An analytical comparison of real-time PCR protocols from five different Scandinavian laborat…

2017

Introduction Lyme borreliosis (LB) is the most common tick transmitted disease in Europe. The diagnosis of LB today is based on the patient A s medical history, clinical presentation and laboratory findings. The laboratory diagnostics are mainly based on antibody detection, but in certain conditions molecular detection by polymerase chain reaction (PCR) may serve as a complement. Aim The purpose of this study was to evaluate the analytical sensitivity, analytical specificity and concordance of eight different real-time PCR methods at five laboratories in Sweden, Norway and Denmark. Method Each participating laboratory was asked to analyse three different sets of samples (reference panels; a…

0301 basic medicinePhysiologyDenmarklcsh:MedicineArtificial Gene Amplification and ExtensionPathology and Laboratory MedicinePolymerase Chain ReactionBiochemistryNervous SystemRNA Ribosomal 16SMedicine and Health Scienceslcsh:ScienceDNA extractionCerebrospinal FluidLyme DiseaseMultidisciplinarySpirochetesbiologyNorwayLyme borreliosisRelapsing FeverBacterial PathogensBody FluidsNucleic acidsReal-time polymerase chain reactionRibosomal RNAMedical MicrobiologyPathogensAnatomyWater MicrobiologyTransmitted diseaseResearch ArticleCell biologyCellular structures and organellesBorrelia Burgdorferi030106 microbiologyTickReal-Time Polymerase Chain ReactionResearch and Analysis MethodsSensitivity and SpecificityMicrobiologyMicrobiology in the medical areaMicrobiology03 medical and health sciencesExtraction techniquesSensuBorreliaMikrobiologi inom det medicinska områdetMedical historyBorrelia burgdorferiMolecular Biology TechniquesNon-coding RNAMicrobial PathogensMolecular BiologySwedenBacteriaBorrelialcsh:ROrganismsBiology and Life Sciencesbacterial infections and mycosesbiology.organism_classificationRNA extraction030104 developmental biologyRNAlcsh:QRibosomesPLOS ONE
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Validate or falsify: Lessons learned from a microscopy method claimed to be useful for detecting Borrelia and Babesia organisms in human blood.

2016

A modified microscopy protocol (the LM-method) was used to demonstrate what was interpreted as Borrelia spirochetes and later also Babesia sp., in peripheral blood from patients. The method gained much publicity, but was not validated prior to publication, which became the purpose of this study using appropriate scientific methodology, including a control group.Blood from 21 patients previously interpreted as positive for Borrelia and/or Babesia infection by the LM-method and 41 healthy controls without known history of tick bite were collected, blinded and analysed for these pathogens by microscopy in two laboratories by the LM-method and conventional method, respectively, by PCR methods i…

0301 basic medicineMicrobiology (medical)AdultDNA BacterialAdolescent030106 microbiologyBabesiaPolymerase Chain ReactionSensitivity and SpecificityMicrobiology03 medical and health sciencesYoung AdultLyme diseaseBorreliaBabesiosisparasitic diseasesMedicineAnimalsHumansChildAgedLyme DiseaseMicroscopyGeneral Immunology and MicrobiologyHuman bloodbiologybusiness.industryLyme borreliosisBorreliaInfantBabesiosisGeneral MedicineDNA ProtozoanMiddle Agedbiology.organism_classificationmedicine.diseaseVirologyPeripheral blood030104 developmental biologyInfectious DiseasesChild PreschoolBabesiaFemalebusinessInfectious diseases (London, England)
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