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Table 1 The recovered virus titer from HmLu and BHK cells after several passages.

From: Propagation of Asian isolates of canine distemper virus (CDV) in hamster cell lines

   Titer (PFU/ml) recovered from
Virus Strain HmLu (7P) a) BHK (5P) a)
   Cell-free Cell-associated Cell-free Cell-associated
  007Lm 3.4 × 103 6.3 × 104 6.0 × 105 1.2 × 106
  55L 2.5 × 105 2.2 × 106(7P)b) 1.6 × 105 2.4 × 105
  009L 1.0 × 105 9.2 × 105(7P)b) 3.0 × 105 4.0 × 105
Asia 2 M25CR 2.0 × 103 8.0 × 105 4.0 × 105 2.0 × 105
  011C 5.0 × 103 2.0 × 104 0.6 × 105 1.6 × 105
  50Con 6.0 ×103 3.0 × 104 2.5 × 105 0.5 × 105
  50Cb1 3.0 × 101 2.2 × 102 1.0 × 104 7.0 × 103 (3P)b)
  Ac96I < 5 ≤ 5 < 5 < 5
  Th12 < 5 < 5 1.0 × 104 8.0 × 103 (3P)b)
Asia 1 50Sc. 1.0 × 105 1.9 × 105(7P)b) 1.1 × 105 1.9 × 105
  81ND. 1.5 × 104 2.5 × 104(7P)b) 5.5 × 103 1.5 × 104 (3P)b)
  82Con 1.2 × 106 1.2 × 106(4P)b) 4.5 × 105 5.5 × 105(4P)b)
  83mLN 2.0 × 105 1.0 × 105(7P)b) 1.3 × 105 1.5 × 105
  1. a) Preset passage level.
  2. b) Cultures at these passages were unable to be transferred further.