Volume 26, Number 12—December 2020
Dispatch
Hypervirulent Klebsiella pneumoniae as Unexpected Cause of Fatal Outbreak in Captive Marmosets, Brazil
Table 1
Histologic findings for tissue samples from captive marmosets analyzed by microscopic evaluation in investigation of a fatal epizootic caused by highly virulent Klebsiella pneumoniae sequence type 86 strain P04 in Brazil, 2019
Organ | No. samples | Histologic findings | Positive/total |
---|---|---|---|
Liver |
10 |
Sinusoidal leukocytosis, predominantly with neutrophilia | 9/10 |
Hemorrhagic foci | 7/10 | ||
Hepatitis necrotizing, suppurative, acute, multifocal | 2/10 | ||
Intravascular fibrin deposition |
1/10 |
||
Spleen |
9 |
Splenitis necrotizing, suppurative, acute, multifocal | 8/9 |
Hemorrhage | 8/9 | ||
Many bacilli on the red pulp |
8/9 |
||
Lung |
10 |
Subacute interstitial pneumonia | 8/10 |
Occasional free bacilli | 7/10 | ||
Hemorrhage |
1/10 |
||
Cerebrum |
10 |
Bacilli on leptomeninges |
1/10 |
Adrenal |
2 |
Adrenalitis necrotizing, suppurative, acute, multifocal |
2/2 |
Heart |
7 |
Myocarditis necrotizing, acute, multifocal |
1/7 |
Intestine |
7 |
Enteritis neutrophilic, acute, diffuse |
2/7 |
Kidney | 8 | Granular tubular casts | 4/8 |
Tubular acute necrosis | 1/8 |