Posted by: Rens | 2009/02/25

Cholera and water filtration - UV A + B

Would UV light (A as well as B of either or) kill the cholera bacteria? Thanks

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Our expert says:
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Yes, it would, but it needs to be the right amount of UV light delivered to the right amount of water in a very specific way i.e. you can't just put a glass of water in the sun and hope for the best! There is a water purification device called a "Steripen" that uses ultraviolet rays to purify water - but you have to use it following the manufacturer's instructions to the letter.

The UV light destroys the DNA of pathogens - both A and B do so in different ways.

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Our users say:
Posted by: Olivia Rose-Innes | 2009/03/18

This is not something you can do as a school project  patients are tested for cholera with a stool sample or rectal swab (i.e. their faeces are tested). And testing water sources is also done in a lab.

Reply to Olivia Rose-Innes
Posted by: Yvette | 2009/03/10

I am really looking for an experement for testing water or a person for cholera. This is for a school project, and I really don' t know where else to go. Can you please help me.

Reply to Yvette

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