Table 1 Measurements of antibodies against Microsporum canis in foxes. Mean and individual absorbance (optical density at 450 nm wavelength; OD) ratios at time of autopsy after different periods of storage at 10°C are presented.

Blood post mortem/blood ante mortem

Body fluid post mortem/blood ante mortem

0

1

silver fox

0.75

n.a.

0

5

silver fox

0.79

0.18

0

16

blue fox

0.98

0.30

0

20

blue fox

0.88

n.a.

Mean ratio day 0:

0.85

0.24

2

2

silver fox

0.54

0.35

2

6

silver fox

0.76

0.08

2

11

blue fox

0.95

0.96

2

17

blue fox

1.19

n.a.

Mean ratio day 2:

0.86

0.46

4

7

silver fox

0.92

0.90

4

12

blue fox

0.38

0.39

Mean ratio day 4:

0.65

0.64

7

3

silver fox

n.a.

0.63

7

8

silver fox

n.a.

0.61

7

13

blue fox

0.74

0.70

7

18

blue fox

0.59

0.83

Mean ratio day 7:

0.67

0.69

9

9

silver fox

0.35

0.44

9

14

blue fox

0.34

0.58

Mean ratio day 9:

0.35

0.51

11

10

silver fox

n.a.

0.57

11

4

silver fox

n.a.

0.36

11

15

blue fox

n.a.

0.34

11

19

blue fox

n.a.

0.90

Mean ratio day 11:

-

0.54