Volume 20, Number 4—April 2014
Cetacean Morbillivirus in Coastal Indo-Pacific Bottlenose Dolphins, Western Australia
|Dolphin no.||Date recovered||Description||Pathologic findings||IHC results||RT-PCR results|
||2009 Jun 5
||Juvenile male in good body condition; TL 210 cm
||Too decomposed for necropsy
|2||2009 Jun 8||Juvenile male in good body condition; TL 210 cm; postmortem interval ≈72 h||1. Encephalitis: severe, focally extensive, suppurative, and necrotizing, with multifocal vasculitis and thrombus formation, with intra-lesional fungal hyphae†||Widespread positive staining of lymphocytes, mesenteric lymph node‡||Positive for morbillivirus N and P genes§|
|2. Splenic and mesenteric node lymphoid depletion, severe|
|3. Segmental jejunal submucosal hemorrhage with thrombosis|
|4. Pulmonary (Halocercus sp.) and gastric (Anisakis sp.) nematodes; trematode (Campanula sp.) infestation of the biliary and pancreatic ducts
|3||2009 Jun 21||Subadult female in good body condition; TL 222.5 cm; postmortem interval ≈72 h||1. Bronchointerstitial pneumonia: multifocal, pyogranulomatous, associated with intralesional fungal hyphae¶||Widespread staining of lymphocytes, mesenteric lymph nodes; weak staining of vascular endothelium, mesenteric lymph node; widespread staining in hepatic Kupffer cells, sinusoidal endothelial cells, and biliary epithelium#||Positive for morbillivirus N and P genes**|
|2. Nephritis: multifocal, necrotizing, severe, acute, with intralesional bacteria|
|3. Severe systemic lymphoid depletion|
|4. Fishing line entanglement, right fluke: chronic and proliferative, with granulation tissue formation, dermatitis, and hyperkeratosis|
|5. Pulmonary (Halocercus sp.) and gastric (Anisakis sp.) nematodes; trematode (Campanula sp.) infestation of the biliary and pancreatic ducts|
*Located at 32°04′S, 115°48′E. TL, total length in centimeters; IHC, immunohistochemical; RT-PCR, reverse transcription PCR; ND, not done; N, nucleoprotein; P, phosphoprotein.
†See Figure 1, panel A.
‡See Figure 1, panel E.
§See Figure 2, Swan River 1.
¶See Figure 1, panels B–D.
#See Figure 1, panel F.
**See Figure 2, Swan River 2.