Abstract
In an enclosure with nine collared peccaries (Pecari tajacu) from the Rio de Janeiro city Zoo, Brazil, one specimen was found dead and two others developed prostration, apathy and dehydration, resulting on its death. Necropsy of two animals pointed to pulmonary and renal damage. Histological examination revealed vasculitis in spleen from both P. tajacu, suggesting a systemic viral infection. Lungs from one specimen showed fibrinoid vasculitis, alveolar damage with hyaline membrane, and interstitial lymphocytes infiltration. Virome analysis in anal wash samples from the latter two animals revealed a new type of Betacoronavirus, lineage A, provisionally named Ptajacu-CoV.
Highlights
On September 12, 2018, one collared peccary (Pecari tajacu), number 6640, elderly male, residing in Zoológico do Rio de Janeiro (RioZoo), was hospitalised due to an intense prostration, apathy and dehydration verified by physical examination of the mucous membranes and capillary fill time
The vasculitis observed in the spleen of two specimens suggested a systemic viral infection
The observed kidney lesions differed from other coronavirus infections.[7]. This report is the first case of a wild pig infection with coronavirus from American continent
Summary
On September 12, 2018, one collared peccary (Pecari tajacu), number 6640, elderly male, residing in Zoológico do Rio de Janeiro (RioZoo), was hospitalised due to an intense prostration, apathy and dehydration verified by physical examination of the mucous membranes and capillary fill time. Samples of anal wash were collected from the two hospitalised peccaries using 5 mL of sterile phosphate buffer injected into the animals’ anal orifice based on federal technical registration 6690176 for handling wild animals.
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