Table 2

Continued Circulation of Tick-Borne Encephalitis Virus Variants and Detection of Novel Transmission Foci, the Netherlands

Helen J. Esser

, Stephanie M. Lim, Ankje de Vries, Hein Sprong, Dinant J. Dekker, Emily L. Pascoe, Julian W. Bakker, Vanessa Suin, Eelco Franz, Byron E.E. Martina, and Constantianus J.M. Koenraadt

Author affiliations: Wageningen University and Research, Wageningen, the Netherlands (H.J. Esser, D.J. Dekker, E.L. Pascoe, J.W. Bakker, C.J.M. Koenraadt); Artemis One Health Research Institute, Delft, the Netherlands (S.M. Lim, B.E.E. Martina); National Institute for Public Health and the Environment, Bilthoven, the Netherlands (A. de Vries, H. Sprong, E. Franz); Sciensano, Brussels, Belgium (V. Suin)

Main Article

Rodents that tested positive for the presence of tick-borne encephalitis virus antibodies by SNT or viral RNA in tissue samples by PCR, the Netherlands, 2018–2020*

Sample ID	Species	Sex	Serologic result†	SNT	PCR result,  Ct value	Nature area	Municipality	Year
18–2752	Apodemus sylvaticus	M	Weak positive	Negative	Negative	National Park de Groote Peel	Peel en Maas	2018
18–2779	A. sylvaticus	F	Weak positive	Not tested‡	Negative	National Park Sallandse Heuvelrug	Rijssen-Holten	2018
18–2829	A. sylvaticus	M	Weak positive	Negative	Negative	National Park Sallandse Heuvelrug	Hellendoorn	2018
18–2830	A. sylvaticus	F	Positive	Negative	Negative	National Park Sallandse Heuvelrug	Hellendoorn	2018
19–2893	A. sylvaticus	F	Positive	Not tested‡	Negative	National Park Utrechtse Heuvelrug	Zeist	2019
19–2895	A. sylvaticus	F	Positive	Negative	Negative	National Park Utrechtse Heuvelrug	Zeist	2019
19–2896	A. sylvaticus	M	Positive	Negative	Negative	National Park Utrechtse Heuvelrug	Zeist	2019
19–2901	A. sylvaticus	M	Weak positive	Negative	Negative	Springendal	Tubbergen	2019
19–2916	A. sylvaticus	M	Positive	Not tested‡	Negative	Nijverdal Garden	Hellendoorn	2019
19–2997	My. glareolus	M	Weak positive	Negative	Negative	Natuurpark de Leemputten	Oost Gelre	2019
19–3001	Microtus arvalis	F	Negative	Not tested	Spleen 30.74, brain 30.09	Natuurpark de Leemputten	Oost Gelre	2019
19–3002	Mi. arvalis	F	Weak positive	Positive	Spleen 30.57; brain 28.33	Natuurpark de Leemputten	Oost Gelre	2019
19–3053	Myodes glareolus	F	Negative	Not tested	Spleen 35.68; brain negative	Rijk van Nijmegen	Berg en Dal	2019

*Ct, cycle threshold; SNT, serum neutralization test. †Positive = 3 × OD_NC (optical density of the negative control), borderline = 2 × OD_NC. ‡Not tested because of too little volume.

Main Article

Page created: September 16, 2022

Page updated: November 21, 2022

Page reviewed: November 21, 2022

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