Figure 1From: Seasonal cercarial emergence patterns of Opisthorchis viverrini infecting Bithynia siamensis goniomphalos from Vientiane Province, Lao PDRCercarial emergence profiles of Opisthorchis viverrini infecting Bithynia siamensis goniomphalos . Cercarial emergence (A) calculated every 2 h from 06:00 until 18:00 h for 7 days (mean ± SE) and (B) calculated daily for 7 days (mean ± SE) from snails collected in Lao PDR.Back to article page