Conlan et al. (2009) explored the role of interspecific competition among Taenia species in modulating T. solium infection of humans. In Southeast Asia, T. solium faces competition in both the definitive host (humans) and the intermediate host (pigs). In humans, adult worms of T. solium, T. saginata and T. asiatica compete through density-dependent crowding mechanisms. In pigs, metacestodes of T. solium, T. hydatigena and T. asiatica compete through density-dependent immune-mediated interactions. Humans are the definitive host for T. asiatica, T. saginata and T. solium. Pigs are the known intermediate host for T. asiatica, T. solium and T. hydatigena. Canines are the definitive host for T. hydatigena and bovines are the intermediate host for T. saginata. Conlan et al. (2009) compared the biological characteristics of T. solium, T. saginata, T. asiatica, and T. hydatigena. (Conlan et al. 2009 and references therein)
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