RL Penland, KR Wilhelmus (Baylor College of Medicine, Houston)
Microbiologic Analysis of Bottled Water: Is It Safe for Use with Contact Lenses ?
Ophthalmology 106: 1500-1503, 1999
There is a general belief that bottled water is sterile and can be used safely, to clean contact lenses.
Examination of 23 brands showed that 37% of bottled water showed pathogens including coliforms. Not only such contaminated bottled water are unsafe for cleaning contact lenses but they can cause waterborne diseases.
D Bieber, SW Ramer, C-Y Wu, et al (Stanford Univ, Calif)
Type IV Pili, Transient Bacterial Aggregates, and Virulence of Enteropathogenic Escherichia Coli.
Science 280:2114-2118, 1998.
Enteropathogenic Escherichia-coli (EPEC) is an important cause of childhood diarrhoea. It is a type IV pilus-producing organism. Type IV pilus called the bundle-forming pilus (BFP) is necessary for the development of localized adherence and autoaggression.