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The bacterium is commonly found in poorly-maintained recreational water sources such as hot tubs, water slides, and swimming pools. [2] Hot tub folliculitis appears on the skin in the form of a rash, roughly resembling chicken pox and then develops further to appear as a pimple. [3] Children are the most likely to be affected. [4]
An air purifier or air cleaner is a device which removes contaminants from the air in a room to improve indoor air quality. These devices are commonly marketed as being beneficial to allergy sufferers and asthmatics , and at reducing or eliminating second-hand tobacco smoke .
The bacterium is found naturally in fresh water. [4] It can contaminate hot water tanks, hot tubs, and cooling towers of large air conditioners. [4] It is usually spread by breathing in mist that contains the bacteria. [4] It can also occur when contaminated water is aspirated. [4]
The term waterborne disease is reserved largely for infections that predominantly are transmitted through contact with or consumption of microbially polluted water.Many infections may be transmitted by microbes or parasites that accidentally, possibly as a result of exceptional circumstances, have entered the water.
Air circulators treat a fractional room volume per unit time and exhaust the treated air back into the room, resulting in fractional air dilution. By contrast, air sanitizers that are maintained at a sufficient and homogeneous concentration within the interior air space provide simultaneous treatment of the entire interior air space volume but ...
Transmissibility is the probability of an infection, given a contact between an infected host and a noninfected host. [8] Community transmission means that the source of infection for the spread of an illness is unknown or a link in terms of contacts between patients and other people is missing. It refers to the difficulty in grasping the ...
The more commonly used term is nontuberculous mycobacteria (NTM) infection, or non-tuberculous mycobacterial infection (NMI). There is no evidence that a person's reluctance to spit has any causal role in NTM infection, the chief reason for the term having been applied to older women presenting with the condition. [26]
High magnification photomicrograph of a lung biopsy taken showing chronic hypersensitivity pneumonitis , showing mild thickening of the walls of the small air sacs by invasion of white blood cells. A multinucleated giant cell , seen within the walls of the air sacs to the right of the picture halfway down, is an important clue to the correct ...