Severe Morbidity Due to Opisthorchis viverrini and Schistosoma mekongi Infection in Lao People's Democratic Republic

We assessed morbidity due to Opisthorchis viverrini and Schistosoma mekongi infections in 243 individuals in Lao People's Democratic Republic. Morbidity was associated with O. viverrini infection intensity. Coinfection with S. mekongi resulted in excess risk of liver fibrosis and left liver lobe enlargement. The high public health impact of opisthorchiasis warrants control