An upsurge in new cholera cases has prompted the Dominican Republic to declare a state of alert in areas of the capital.
Sixteen people have been hospitalized with suspected cholera cases, and there have been two deaths in recent days, reports the BBC.
More than 4,500 have died in neighboring Haiti from cholera since last October, according to the United Nations.
Monitoring has been increased in 17 mainly poor neighborhoods in Santo Domingo. The health ministry is urging people to take extra care with hygiene.
Neither Haiti nor the Dominican Republic had had a confirmed case of cholera in more than a century until the outbreak began in October.