| Abstract |
Cholera has been endemic in eastern India and in east Pakistan (present Bangladesh). The fact that this disease is caused by an organism, called Cholers vibrio was first reported by Robert koch in 1884, who observed that a wide variety of vibrios commonly found in natuire were characteristically haemolytic, whereas true cholera vibrios were not haemolytic. But subsequently in 1906 haemolytic strains of cholera vibrios were isolated from deasd bodies of pilgrims seen at the Eltor Quarantine station in Egypt. The cholera outbreak in Sulawesi (Indonesia) in 1939 was found to be due to the haemolytic biotypes of vibrio cholerae. The marked epidemiological difference between EI Tor and classical cholera are the infection to case ratio is higher with EI Tor cholera and the EI Tor vibrio can survive longer in the environment making it more easily detectable. |
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