![]() ![]() Epidemiology, risk factors, and disease burdenĬholera can be endemic or epidemic. There is no difference in the illness caused by the two serogroups. It has never been identified outside Asia. cholerae O139 – first identified in Bangladesh in 1992 – caused outbreaks in the past, but recently has only been identified in sporadic cases. cholerae O1 has caused all recent outbreaks. cholerae, but only two – O1 and O139 – cause outbreaks. Cholera is now endemic in many countries. The current (seventh) pandemic started in South Asia in 1961, reached Africa in 1971 and the Americas in 1991. Six subsequent pandemics killed millions of people across all continents. Historyĭuring the 19th century, cholera spread across the world from its original reservoir in the Ganges delta in India. This can lead to death if left untreated. ![]() cholerae do not develop any symptoms, although the bacteria are present in their faeces for 1-10 days after infection and are shed back into the environment, potentially infecting other people.Īmong people who develop symptoms, the majority have mild or moderate symptoms, while a minority develop acute watery diarrhoea with severe dehydration. Cholera affects both children and adults and can kill within hours if untreated. It takes between 12 hours and 5 days for a person to show symptoms after ingesting contaminated food or water (2). SymptomsĬholera is an extremely virulent disease that can cause severe acute watery diarrhoea. Cholera remains a global threat to public health and an indicator of inequity and lack of social development. Cholera is an acute diarrhoeal infection caused by ingestion of food or water contaminated with the bacterium Vibrio cholerae. ![]()
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