| pathological findings in wild rats (rattus rattus) captured at guafo island, northern chilean patagonia. | the black rat (rattus rattus) is an invasive species and potential reservoir of significant pathogens of man, domestic animals and wildlife. during the 2012-2014 austral summers, 201 black rats were captured and examined on the uninhabited guafo island, in northern chilean patagonia (43.593029°s, 74.713481°w). the mite ornithonyssus bacoti caused lymphoplasmacytic and eosinophilic dermatitis in all infected rats (105/210, 52%), but no skin lesions were observed in rats infected with nosopsyllus ... | 2017 | 28942299 |