1.   Movchanyuk blamed the Nikolayev outbreak on a decaying sewage system and the unwillingness of city authorities to stop dumping raw sewage into the river.

2.   Officials blame the outbreak on a decaying sewage system and the dumping of raw sewage into the Yuzhniy Buh River, which flows into the Black Sea.

3.   Officials have blamed the Nikolayev outbreak on a decaying sewage system and the dumping of raw sewage into the river.

4.   Officials have blamed the Nikolayev outbreak on a decaying sewage system and the dumping of raw sewage into the Yuzhniy Buh River, which flows into the Black Sea.