What Diseases Can Be Spread by Floodwater?

Floodwater often contains harmful bacteria from sewage, animal waste, or soil. These can cause serious gastrointestinal diseases if you swallow even a small amount. Symptoms include severe stomach cramps, diarrhea, and vomiting. Open wounds exposed to this water can also become infected, leading to conditions like cellulitis. It is critical to avoid wading through floodwater whenever possible to prevent these bacterial illnesses.

If contact with floodwater is unavoidable, you should wash any exposed skin with soap and clean water immediately. Pay special attention to any cuts or scrapes. Keeping your hands clean before eating or touching your face is also essential. See a doctor if you develop a fever, skin redness, or persistent digestive problems after exposure to flood conditions.

Flooding creates pools of stagnant water that can last for days or weeks. These pools become breeding sites for mosquitoes, which can multiply rapidly. Stagnant water in any climate can increase this risk significantly. Increased mosquito populations raise the chance of bites that may transmit diseases to people and pets.

Your role in prevention focuses on eliminating mosquito breeding sites. After floodwaters drain, walk your property and tip out any collected water in buckets, toys, or plant saucers. Ensure your window and door screens are intact to keep insects out. If you notice a large, persistent mosquito problem, local vector control agencies can provide guidance and resources.

• Standing water left after floods creates perfect breeding grounds for mosquitoes.
• Mosquitoes can transmit viruses like West Nile virus or dengue fever.
• Symptoms range from mild fever and headache to severe neurological illness.
• Reducing standing water around your property is a crucial preventive measure.
• Empty containers, clean gutters, and ensure proper yard drainage after water recedes.
• Use EPA-registered insect repellent and wear long sleeves when outdoors.

Your first priority after a flood is to protect your health. Do not enter flooded areas until it is safe to do so, being mindful of electrical hazards. If you must clean up, wear protective gear to prevent skin contact with water. All hard surfaces should be cleaned with a bleach solution or other EPA-approved disinfectants to kill germs.

• Assume all floodwater is contaminated with harmful pathogens.
• Wear waterproof boots, gloves, and goggles if you must enter the area.
• Disinfect everything the floodwater touched, including tools and shoes.
• Wash contaminated clothing separately in hot water and detergent.
• Keep children and pets away from flooded areas and standing water.
• Monitor your health and seek medical care for any concerning symptoms.