Funding for this research was provided by:
Instituto de Salud Carlos III (CP12/03081)
Received: 11 August 2017
Accepted: 16 January 2018
First Online: 22 January 2018
: This study was carried out in compliance with the national animal welfare regulations. Diagnostic veterinary procedures are not within the context of relevant EU legislation for animal experimentation (Directive 86/609/EC) and may be performed in order to diagnose animal diseases and improve animal welfare. Faecal droppings were collected by trained personnel who ensured owners consent and caused neither harm nor suffering to the investigated animals.
: Not applicable.
: The authors declare that they have no competing interests.
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