Biology 9700 · AS & A Level · Movement into and out of cells

Movement into and out of cells — practice question

Which characteristic of cholera reduces the transmission 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.

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