In a recent study, a group of researchers have developed a high-dose cholera vaccine for controlling outbreaks.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/single-dose-vaccine-may-control-cholera-outbreaks-study
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/big-news-network
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/cholera
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/waterborne-diseases
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/drugs
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/africa
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/asia