Infectious Disease Epidemiology Program
Recreational Water Illness (RWI)
Though summer is short in Maine, residents and visitors spend time in pools and at beaches. Staying healthy while enjoying summer activities is important. Keeping our recreational water sources clean is also important. Please read below to discover what you can do to stay healthy this summer and help keep others healthy too. Happy Swimming!
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Frequently Asked Questions
What are RWIs?
- Recreational water illnesses (RWIs) are caused by germs spread by swallowing, breathing in mists or aerosols of, or having contact with contaminated water in swimming pools, hot tubs, water parks, water play areas, interactive fountains, lakes, rivers, or oceans. RWIs can be a wide variety of infections, including stomach, skin, ear, respiratory, eye, neurologic and wound infections. The most commonly reported RWI is diarrhea.
How are RWIs spread?
- Swallowing water that has been contaminated with germs is the primary way RWIs are spread. Water can be contaminated from stool, sewage spills, animal waste and water runoff during rainfall. Some RWIs are caused by germs that live naturally in the environment. Proper disinfectant levels in pools or hot tubs will kill most germs.
Who can most likely get ill from RWI?
- Children, pregnant women, and people with weakened immune systems (people living with AIDS, organ transplants, receiving chemotherapy) can suffer from more severe illness if infected.
How can I prevent RWI?
- Dont swim when you have diarrhea
- Dont swallow the water
- Wash your hands after using the toilet or changing diapers and shower with soap before swimming
- Take kids on bathroom breaks or check diapers often
- Change diapers in a bathroom or a diaper-changing area
- Wash your child thoroughly (especially the rear end) with soap and water before swimming
Resources for Health Care Providers
To report a recreational water illness or a related concern please contact the Maine CDC at 1-800-821-5821 or e-mail: disease.reporting@maine.gov . More information on reportable diseases