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Table 1 Histologic lesions of CDV-infected raccoons.

From: Genetically distant American Canine distemper virus lineages have recently caused epizootics with somewhat different characteristics in raccoons living around a large suburban zoo in the USA

Raccoon Sex M/Ya Siteb Presentation Encephalitisf Pneumoniah Other findings EMCVk
98-2645 F 8/98 FPc Euthanized ++; Demyelination; axonal loss; few IBg +++; Chronic; no IB Lymphoid depletion (LNi); IB – other sites -
98-2646 M 8/98 ZGd Dead - ++; Sub-acute to chronic; no IB IB – other sitesj -
98-2654 M 10/98 ZG Euthanized Rare axonal loss ++ Ocular discharge; CDV in footpad ("Hardpad" disease); lymphoid depletion (LN and spleen) -
98-2655 F 10/98 ZG Dead ++; IB common None Lymphoid depletion (LN and spleen); IB – other sites -
98-2666 F 12/98 ZG Euthanized ++; Axonal loss; rare neuronal IB ++; Chronic; no IB Lymphoid depletion (LN and spleen); IB – other sites -
00-2601 M 1/00 ZG Euthanized ++; Rare neuronal IB; severe axonal loss None IB – other sites -
01-2641 M 5/01 OFPe Euthanized +; IB; syncytia in hippocampus +++ with syncytia; IB Lymphoid depletion (LN and spleen); IB – other sites + brain, LN, spleen)
01-2663 F 6/01 ZG Euthanized None +++ with syncytia; IB Lymphoid depletion (LN and spleen); IB – other sites -
01-2676 F 7/01 ZG Euthanized +; Axonal loss; neuronal necrosis; IB; syncytia in hippocampus +++; IB Lymphoid depletion (LN); IB – other sites -
01-2689 F 8/01 ZG Euthanized +; IB ++ with syncytia; IB Lymphoid depletion (LN and spleen); IB – other sites; rhinitis; purulent conjunctivitis -
01-2690 M 8/01 ZG Euthanized Rare neuronal necrosis; IB None Lymphoid depletion (LN); IB – other sites + (spleen)
  1. aM/Y; Month and year animal examined by necropsy and specimens frozen.
  2. bSite; Location where animal was trapped or found dead.
  3. cFP; Forest preserve at border of zoo.
  4. dZG; Zoo grounds.
  5. eOFP; Off-site forest preserve
  6. fEncephalitis: -, none; +, mild; ++, moderate.
  7. gIB; Characteristic intracytoplasmic or intranuclear inclusion bodies formed by Canine distemper virus.
  8. hPneumonia: +, mild; ++, moderate; +++, severe.
  9. iLN; Lymph node.
  10. JIB – other sites: Inclusion bodies in other epithelial sites.
  11. kEMCV, Encephalomyocarditis virus.