Human Borrelia miyamotoi Infection, Austria

Area of Science:

• Medical microbiology
• Infectious diseases
• Tick-borne pathogens

Background:

• Borrelia miyamotoi is an emerging tick-borne spirochete.
• Human infections with Borrelia miyamotoi have been reported globally.
• Diagnostic challenges exist for Borrelia miyamotoi infections.

Purpose of the Study:

• To report a confirmed human case of Borrelia miyamotoi infection.
• To detail the diagnostic methods used for identification.
• To characterize the phylogenetic origin of the identified strain.

Main Methods:

• Microscopic examination of Giemsa-stained blood smears.
• Polymerase Chain Reaction (PCR) for Borrelia miyamotoi DNA detection.
• Phylogenetic analysis of the spirochete strain.

Main Results:

• Spirochetes consistent with Borrelia miyamotoi were visualized in blood smears.
• PCR confirmed the presence of Borrelia miyamotoi in the patient's blood.
• Phylogenetic analysis indicated the strain originated from Europe.

Conclusions:

• Borrelia miyamotoi infection is a confirmed human diagnosis in Austria.
• Microscopy and PCR are effective diagnostic tools.
• The case highlights the circulation of European Borrelia miyamotoi strains in humans.