Legionellosis (or Legionnaires disease) is a worldwide phenomenon. It often occurs after breathing in aerosols from a contaminated water source.
The mist may come from air conditioning cooling towers, whirlpool spas, showers or faucets, and infect people in homes, workplaces, hospitals, or (semi-)public places such as hotels, restaurants, and swimming pools. Ultrafiltration technology uses all microbiology, and can be applied at the point of use or at the point of entry.
There are two primary types of water treatment scenarios in the healthcare setting: