Hello Dr. Until now there was no described cell line for the isolation and the culture of A. platys. I have try previously several cell line derevated from ticks or mammalian host, however, i have never successfuly propagete A. platys for a long time. The culture stay positive untile the 4 ou the 5 weeks, then the culture return negative. I think we do improve the media used for the propagation of the cell line used in the culture. You can use the whole-blood culture system based on the method used for Plasmodium culture. This technique allowed cultures to be maintained far beyond 100 passages and did not result in continuous propagation