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Table 3 Comparative results of seven sheep with recent natural T. gondii infection; serum tested by PrioCHECK ® Toxoplasma Ab SR ELISA (cut-off PP 20), IFAT (cut-off 1:40) and IHA (cut-off 1:80) at day 0, 25 and 35 (slaughter) and real-time PCR of brain and skeletal muscle at day 35

From: Evaluation of a commercial ELISA kit for detection of antibodies against Toxoplasma gondii in serum, plasma and meat juice from experimentally and naturally infected sheep

Sheep no.

Time course (days)

ELISA (PP)*

IFAT (titer)

IHA

Real-time PCR brain

Real-time PCR skeletal muscle

4947

0

- (3.69)

- (<1:40)

-

  
 

25

+ (89.02)

+ (≥1:5,120)

+

  
 

35

+ (101.33)

+ (≥1:5,120)

+

+

-

4948

0

- (3.28)

- (<1:40)

-

  
 

25

+ (82.43)

+ (≥1:5,120)

+

  
 

35

+ (79.08)

+ (≥1:5,120)

+

-

+

3879

0

- (4.24)

+ (1:40)

+

  
 

25

+ (78.86)

+ (≥1:5,120)

+

  
 

35

+ (85.32)

+ (≥1:5,120)

+

-

+

3880

0

- (6.20)

+ (1:80)

+

  
 

25

+ (86.23)

+ (≥1:5,120)

+

  
 

35

+ (91.87)

+ (≥1:5,120)

+

-

+

3883

0

- (9.07)

+ (1:40)

-

  
 

25

+ (38.32)

+ (≥1:5,120)

+

  
 

35

+ (74.31)

+ (1:2,560)

+

-

-

3885

0

- (5.88)

- (<1:40)

-

  
 

25

+ (44.29)

+ (1:1,280)

+

  
 

35

+ (47.41)

+ (1:640)

+

-

+

3886

0

- (12.39)

- (<1:40)

-

  
 

25

+ (31.39)

+ (1:1,280)

+

  
 

35

+ (38.19)

+ (1:640)

+

-

-

  1. * PP: Index for percentage of positivity.