NPS and infection: Transcripts involved in neurogenesis such as Slit genes, LOC410555, LOC724772, leucine-rich repeat neuronal protein 3 (LOC724187), neuropeptide and neurotransmitter transporter 8, were modulated at day 5 P.I but not at days 10 and 15 P.I. Slitis part of a large network of genes involved in tissue regeneration and has been shown to be down regulated following infection by Nosema [11].