A multisystemic Acanthamoeba infection in a dog in Tenerife, Canary Islands, Spain
2014
Valladares, María | Reyes-Batlle, María | Mora-Peces, Inmaculada | Martín-Navarro, Carmen M. | López-Arencibia, Atteneri | Dorta-Gorrín, Alexis | Comyn-Afonso, Estefanía | Martínez-Carretero, Enrique | Maciver, Sutherland K. | Piñero, José E. | Valladares, Basilio | Lorenzo-Morales, Jacob
A 22-month-old male Spanish water dog was hospitalized after its physical examination revealed fever and movement difficulty. After 24h, the dog was found to have a high fever (39.5°C) and was treated empirically with doxycycline/ciprofloxacin. At 48h, after submission the fever rose to 41°C and the animal presented with a stiff neck and dehydration. Peripheral blood and cerebrospinal fluid (CSF) were sampled and trophozoites with an Acanthamoeba-like morphology were observed in the CSF. PCR specific for Acanthamoeba, Naegleria fowleri and Balamuthia mandrillaris were performed and the CSF sample found positive for Acanthamoeba. Lungs, kidney, liver and spleen samples were collected post mortem. All collected organ samples were positive for Acanthamoeba by PCR, thus confirming a multisystemic infection. Water samples taken at a suspected site of infection yielded an almost identical PCR fragment to those of the clinical samples, indicating that this was probably where the infection originated. This is the first report of a fatal case of Acanthamoeba disseminated infection in a dog in Spain.
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