Direct detection of Anaplasma phagocytophilum by polymerase chain reaction followed by electrospray ionization mass spectrometry from human blood

International Journal of Infectious Diseases : IJID : Official Publication of the International Society for Infectious Diseases
Heimo LaglerMichael Ramharter

Abstract

Bacterial pathogens not detectable via commercial blood culture assays represent an important challenge for infectious disease physicians, in particular if clinical symptoms of the illness are non-specific. In this report, Anaplasma phagocytophilum was detected directly in a peripheral blood sample from a febrile patient reporting a tick bite. This was done using a commercial system based on PCR followed by electrospray ionization mass spectrometry (ESI-MS). The diagnosis of a human granulocytic anaplasmosis infection was established using this diagnostic methodology for the first time. Human granulocytic anaplasmosis is a neglected zoonotic disease in Europe. Its seroprevalence is similar in North America and Europe, but in contrast to the USA, it is rarely diagnosed in the old world. PCR followed by ESI-MS is a novel, complex, but highly promising diagnostic methodology for the rapid assessment of rare or exotic pathogens, including intracellular bacteria.

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Citations

Apr 21, 2020·BMC Infectious Diseases·Wolfgang HoeplerChristoph Wenisch
Jan 19, 2021·Parasitology Research·Andrea SpringerChristina Strube

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