A-LevelBiologyInfectious diseases9700/12 · Feb/Mar 2022 · Q371 Mark
Which feature of the disease cholera decreases the spread of the pathogen Vibrio cholerae?
AImmunity to cholera after vaccination is short lived, lasting less than two years after vaccination in 50% of people.
BUp to 98% of people infected with Vibrio cholerae are symptomless carriers.
CCholera rapidly kills up to 50% of people with symptoms if they are not treated.
DSimple rehydration therapy successfully treats about 99% of people with symptoms of cholera.
✓ Correct answer
C: Cholera rapidly kills up to 50% of people with symptoms if they are not treated.
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