Li L, Kapoor A, Slikas B, Bamidele OSoji, Wang C, Shaukat S, Masroor MAlam, Wilson ML, Ndjango J-BN, Peeters M, et al. Multiple diverse circoviruses infect farm animals and are commonly found in human and chimpanzee feces. Journal of Virology. 2010 ;84(4):1674-82.