Molecular Surveillance of <i>Neoehrlichia mikurensis</i> and <i>Anaplasma phagocytophilum</i> in Ticks from Urbanized Areas of Lithuania

Molecular Surveillance of <i>Neoehrlichia mikurensis</i> and <i>Anaplasma phagocytophilum</i> in Ticks from Urbanized Areas of Lithuania

<i>Neoehrlichia mikurensis</i> and <i>Anaplasma phagocytophilum</i>, both members of the Anaplasmataceae family, are pathogens that can cause diseases in animals and humans. Ixodid ticks are the primary vectors for both species. While urban green spaces offer various ecologic...

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Main Authors: Justina Snegiriovaitė, Indrė Lipatova, Miglė Razgūnaitė, Algimantas Paulauskas, Jana Radzijevskaja
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Pathogens
Subjects:
<i>Ixodes ricinus</i>
<i>Dermacentor reticulatus</i>
tick-borne pathogens
zoonosis
Online Access:https://www.mdpi.com/2076-0817/14/7/642
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Summary:<i>Neoehrlichia mikurensis</i> and <i>Anaplasma phagocytophilum</i>, both members of the Anaplasmataceae family, are pathogens that can cause diseases in animals and humans. Ixodid ticks are the primary vectors for both species. While urban green spaces offer various ecological and social benefits, there is increasing evidence suggesting potential public health risks, particularly increased exposure to vector-borne diseases. The aim of the present study was to assess the prevalence and co-occurrence of <i>A. phagocytophilum</i> and <i>N. mikurensis</i> in ticks from urban environments in Lithuania. A total of 3599 <i>Ixodes ricinus</i> and 29 <i>Dermacentor reticulatus</i> were collected from 31 urban and 21 peri-urban areas. Ticks were examined for pathogens using duplex real-time PCR. <i>Anaplasma phagocytophilum</i> was detected in 4.47% of tested ticks, while <i>N. mikurensis</i> in 6.17%. Co-infection was found in 0.42% of <i>I. ricinus</i> specimens. Phylogenetic analysis of the <i>groEl</i> gene revealed low genetic variability of <i>N. mikurensis</i> and the circulation of two ecotypes (I and II) of <i>A. phagocytophilum</i>. Additionally, <i>Ehrlichia muris</i> was identified in <i>I. ricinus</i> ticks. This study is the first report of <i>N. mikurensis</i> detection in ticks from Lithuania. Our findings highlight the potential risk posed by tick-borne pathogens in urban and peri-urban areas of the country.
ISSN:2076-0817

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