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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.