Table 1 Overview of clinical signs, pathohistologic and diagnostics findings
From: Mycoplasma hyorhinis as a possible cause of fibrinopurulent meningitis in pigs? - a case series
Farm | Piglet | CNS-related clinical signs | Pathohistologic lesions of the brain | Mhr isolation from different tissues | other bacteria isolated from CNS samples | PRRSV status of farms and PCR results of piglets | PCV-2 PCR results of piglets |
|---|---|---|---|---|---|---|---|
1 | A | lateral recumbency, reduced general behavior | none | serosa +++ meninges +/++ synovia +++ | – | PRRSV detected in tissue samples by RT-PCR | below limit of quantification |
B | head tilt | severe lymphocytic and fibrinopurulent leptomeningitis | serosa +++ meninges +/++ synovia +++ | – | PRRSV detected in tissue samples by RT-PCR | below limit of quantification | |
2 | A | head tilt, reduced general behavior | none | CSF +++ serosa +++ | – | PRRSV detected in tissue samples by RT-PCR | negative |
B | none | none | serosa +++ | no samples taken | PRRSV detected in tissue samples by RT-PCR | negative | |
3 | A | lateral recumbency, unable to rise | severe fibrinopurulent leptomeningitis | CSF (+) lung +++ synovia (+) | CSF: S. suis + | MLV vaccinated, not tested | negative |
B | uncoordinated movement, lameness, tremor/shaking | moderate fibrinopurulent leptomeningitis | CSF (+) | – | MLV vaccinated, not tested | negative | |
C | uncoordinated movement, lameness, tremor/shaking | severe fibrinopurulent leptomeningitis | CSF ++/+++ lung tissue (+) | – | MLV vaccinated, not tested | negative | |
4 | A | peracute deaths, no symptoms | severe fibrinopurulent leptomeningitis | meninges (+) lung (+) | – | unsuspicious, not tested | negative |
B | peracute deaths, no symptoms | severe fibrinopurulent leptomeningitis | meninges ++ lung + | – | unsuspicious, not tested | negative |