Introduction
Between 8-10 million people in Asia are infected
with the Opisthorchis viverrini (Ov). Sripa et al. (2010)
reported that eating raw carp (Cyprinoid fish) infested with
Opisthorchis metacercaria the parasite to the gall bladder,
resulting in irritation, inflammation and blockages of the
biliary system. After decades of chronic inflammation,
cholangiocarcinogenesis occurs in subset of infected
persons.
Opisthorchis infection among Northeastern directly
stems from the habit of eating uncooked infested
Cyprinoid fish and fermented fish (rich in nitrosamines
a known carcinogen) (Jongsuksuntigul and Imsomboon,
2003).The high incidence and wide-spread prevalence of
Opisthorchiasis will persist (Vatanasapt et al., 1990) unless
these eating habits are changed and/or the infestations are
eliminated (Rangsin et al., 2009).