Answers ( 2 )

  1. Emily T. McMullin
    0
    September 30, 2018 at 7:31 pm
    Reply

    If we use sewage water for irrigation then vegetables gets contaminated and become the source of infection.

  2. Cynthia L. Cifuentes
    0
    September 30, 2018 at 7:29 pm
    Reply

    By proper washing and keeping them clean as we can. And by not using sewage water for irrigation purposes.

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