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Table 1 Horizontal transmission of Powassan virus lineage II to mice by Ixodes scapularis, Dermacentor variabilis and Amblyomma americanum

From: Vector competence of human-biting ticks Ixodes scapularis, Amblyomma americanum and Dermacentor variabilis for Powassan virus

Tick species

Exposed mice (n)

Mice with signs of infection (n)

POWV II Infection (n)a

Ixodes scapularis

8b

8

8

Dermacentor variabilis

8b

8

7

Amblyomma americanum

8b

8

7

  1. POWV II Powassan virus lineage II
  2. aData obtained from RT-qPCR analysis of brain and/or spleen tissues of exposed mice
  3. b6 (fully engorged) + 2 (partially fed) nymphs recovered from feeding capsules