A fishing cat (Felis viverrina) died overnight, within 12 hr of peracu
te onset of depression, slight tremors, pallor, and icterus. Necropsy
showed widespread hemorrhage and hematomata in the heart, stomach, and
kidneys. The lungs were hyperemic and edematous. The liver was swolle
n and yellowish green. The spleen was very large and hyperemic. Histol
ogic changes consisted of pneumonia, hepatic necrosis, and renal hemor
rhage with glomerular fibrin clots. Chlamydia antigen was detected in
liver and kidney using a direct immunofluorescence assay, and Chlamydi
a were cultured.