![Biology / BioSand Filter / Cholera / Zimbabwean cholera outbreak / Bacteria / Microorganism / Infectious dose / Medicine / Microbiology / Health Biology / BioSand Filter / Cholera / Zimbabwean cholera outbreak / Bacteria / Microorganism / Infectious dose / Medicine / Microbiology / Health](https://www.pdfsearch.io/img/2f9bbc2fb3af1e5670384fe955a420a1.jpg) Date: 2009-02-19 00:21:44Biology BioSand Filter Cholera Zimbabwean cholera outbreak Bacteria Microorganism Infectious dose Medicine Microbiology Health | | BSF Guidance Manual #8 Cholera and the BioSand Water Filter January[removed]Dr. David H. Manz, P. Eng., P. Ag.
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