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Table 2 Relationship between disease diagnosis related to a given lesion* and detection by culture (S. suis, G. parasuis, A. suis) related to a given specimen by agent. The numerator represents the number of cases with disease diagnosis for the agent associated to a lesion (Example: S. suis + Meningitis), and the denominator represent the number of cases in which the agent was detected in a given sample type (Example: S. suis + Central Nervous Samples, CNS) but also included a histopathological assessment. These analyses were done for specific lesions and related specimens

From: Detection and disease diagnosis trends (2017–2022) for Streptococcus suis, Glaesserella parasuis, Mycoplasma hyorhinis, Actinobacillus suis and Mycoplasma hyosynoviae at Iowa State University Veterinary Diagnostic Laboratory

Specimens

S. suis disease diagnosis

Arthritis

Bronchopneumonia

Endocarditis

Meningitis

Sepsis

Serositis

CNS

1443/2994 = 48.1%

Heart valve

240/333 = 72.0%

Joint

520/837 = 62.1%

Kidney

12/70 = 17.1%

Liver

48/443 = 10.8%

Lung

5199/12,891 = 40.3%

300/12,891 = 2.3%

Serosal fibrin

2374/4190 = 56.6%

Spleen

236/2462 = 9.6%

 

G. parasuis disease diagnosis

Specimens

Arthritis

Bronchopneumonia

Endocarditis

Meningitis

Sepsis

Serositis

CNS

58/140 = 41.4%

3/140 = 2.1%

62/140 = 44.2%

Joint

98/153 = 64.0%

Kidney

1/7 = 14.3%

3/7 = 42.9%

Liver

2/28 = 7.1%

16/28 = 57.1%

Lung

2211/5228 = 42.3%

45/5228 = 0.8%

1441/5228 = 27.6%

Serosal fibrin

20/936 = 2.1%

818/936 = 87.4%

Spleen

23/266 = 8.7%

187/266 = 70.3%

 

A. suis disease diagnosis

Specimens

Arthritis

Bronchopneumonia

Endocarditis

Meningitis

Sepsis

Serositis

CNS

14/54 = 25.9%

6/54 = 11.1%

5/54 = 9.2%

Heart valve

4/12 = 33.3%

Joint

52/67 = 77.6%

Kidney

9/16 = 56.2%

Liver

57/113 = 50.4%

31/113 = 27.4%

Lung

1006/1651 = 60.9%

265/1651 = 16.0%

353/1651 = 21.8%

Serosal fibrin

69/526 = 13.2%

290/526 = 55.1%

Spleen

141/344 = 40.9%

126/344 = 36.7%

  1. *The number of cases with lesions (numerator) differs from Table 1 because not all cases reported a specimen or possibly a testing (culture or PCR) in the bacteriology section or molecular section