Katadyn Group

Water contamination

Drinking water contains three groups of pathogenic microorganisms:

Family Known germs Size range
Viruses Hepatitis A, Norwalk Virus, Rotavirus, Poliovirus ~0.02 - 0.2 microns
Bacteria E-coli (Escherichia coli), Salmonella (Salmonella typhimurium), Cholera (Vibrio cholerae) 0.2 - 5 microns
Protozoans Amoeobiasis (Entamoeba histolytica), Giardia lamblia (Giardia intestinalis), Cryptosporidium (Cryptosporidumparvum) 1 - 15 microns

Source: Osmonics, Inc.

A large number of additional pathogens are known besides the germs listed above. But according to WHO, their pathogenic (disease-inducing) action is only slight, or they are primarily absorbed along with food.

Viruses

Viruses

Bacteria

Bacteria

Protozoans

Protozoans

Download our overview of pathogens and diseases

Videos

Lecteur video pour Pocket_Long-Katadyn_03.flv