Water is a great blessing, but unfortunately, it can become a source of danger if it’s contaminated! Waterborne diseases don’t just cause diarrhea or vomiting—they can significantly impact our health, especially for children and the elderly. The presence of bacteria, viruses, and parasites in water makes any unclean glass of water a potential source of infection.In this Dalily Medical article, we will explore the most common waterborne diseases, their symptoms, risks, and prevention methods, as well as practical tips to protect your health and the health of your family.
Waterborne diseases are illnesses that occur when a person drinks contaminated water or uses unsafe water for cooking, bathing, or washing fruits and vegetables. This problem is especially common in areas with poor sanitation or inadequate water treatment, and contaminated water often contains bacteria, viruses, or parasites that cause illness.
Some groups are more susceptible due to weak immunity or their living conditions, including:
Young children
Elderly people
People with weakened immune systems
Residents in areas with poor sanitation services
Not necessarily. Some diseases may present different symptoms depending on the microorganism, such as:
Fever
Jaundice (yellowing of the skin and eyes)
Stomach cramps or abdominal pain
Muscle aches
No, well water can be contaminated with bacteria or parasites, especially if:
Sanitation facilities are nearby
The surrounding soil is contaminated
Recommendations:
Boil water before drinking
Or purify it using safe water filters
Yes. A person can be infected multiple times if they continue to drink contaminated water or use unsafe water sources, particularly if their immune system is weak.
Herbs like ginger or mint may help relieve symptoms, but they cannot replace medical treatment or clean water. The best prevention is personal hygiene and water disinfection.
Yes. Children have developing immune systems and are more likely to be exposed to contaminated water while playing or drinking directly from unsafe sources.
Recovery time depends on the type of disease and severity of infection:
Most cases improve within a few days with proper fluid replacement and treatment.
Severe cases may require weeks for full recovery.
Yes. If not treated promptly, they may lead to:
Severe dehydration
Electrolyte imbalance
Liver or kidney problems
Life-threatening complications in some cases
This is the initial stage when a person comes into contact with contaminated water.
Common exposure methods:
Drinking water contaminated with bacteria or viruses
Eating food washed or prepared with unsafe water
Swimming or bathing in contaminated water
Using unsafe water for cooking
At this stage, microbes usually enter the body through the mouth.
After entering the body, microbes start to multiply in the digestive tract or tissues, but symptoms often do not appear immediately.
Characteristics:
Can last from hours to several days
No obvious symptoms initially
Microbes begin spreading within the body
At this stage, symptoms begin to appear due to the effect of microbes on the body.
Most common symptoms:
Diarrhea
Vomiting
Abdominal pain
Fever
Fatigue
Dehydration in severe cases
If the infection is not treated quickly, complications may occur:
Severe dehydration
Electrolyte imbalance
Kidney or liver problems
General weakness
This stage begins after treatment or as the immune system improves.
What happens:
Gradual disappearance of symptoms
Restoration of body strength
Return of the digestive system to normal function
The presence of harmful bacteria in water is one of the main causes of waterborne diseases, often due to mixing drinking water with sewage.
Common bacteria:
Salmonella
Escherichia coli (E. coli)
Vibrio cholerae (cholera bacteria)
These bacteria can cause illnesses such as severe diarrhea and food poisoning.
Sometimes water is contaminated with viruses from human or animal waste.
Examples of viruses:
Hepatitis A virus
Rotavirus
These viruses can cause digestive and liver problems.
Parasites can enter the body through drinking contaminated water or consuming food washed with unsafe water.
Examples:
Amoeba
Giardia
These often cause chronic diarrhea and abdominal cramps.
Lack of proper sewage systems can lead to mixing human or animal waste with water sources such as rivers and wells, increasing the spread of waterborne diseases.
Even if water is initially clean, it can become contaminated during storage due to:
Using dirty containers
Leaving water uncovered
Using contaminated tools for handling water
Washing fruits and vegetables or preparing food with unsafe water easily transfers microbes into the body.
Floods and heavy rains can mix drinking water with sewage or contaminated water, which increases the risk of waterborne diseases.
A serious bacterial disease transmitted through contaminated water.
Symptoms:
Severe watery diarrhea
Frequent vomiting
Severe dehydration
Low blood pressure
Extreme fatigue
A bacterial fever usually transmitted through contaminated water or food.
Symptoms:
Persistent high fever
Severe headache
Loss of appetite
Abdominal pain
Diarrhea or constipation
General fatigue
A bacterial or parasitic infection caused by contaminated water.
Symptoms:
Severe diarrhea
Blood or mucus in stool
Intense abdominal cramps
Nausea and vomiting
Mild fever
A viral infection sometimes transmitted via contaminated water or food.
Symptoms:
Jaundice (yellowing of skin and eyes)
Loss of appetite
Nausea and vomiting
Severe fatigue
Abdominal pain near the liver
Dark-colored urine
A parasitic infection usually caused by drinking contaminated water.
Symptoms:
Recurrent diarrhea
Abdominal bloating
Excessive gas
Stomach cramps
Occasional weight loss
A viral disease transmitted through contaminated water or food containing human waste.
Symptoms:
Fever
Headache
Sore throat
General fatigue
Stiff neck
Muscle weakness or paralysis in severe cases
A parasitic disease often contracted by swimming or coming into contact with contaminated water.
Symptoms:
Itching or skin rash
Abdominal pain
Diarrhea
Blood in urine or stool
Enlarged liver or spleen in advanced cases
One of the most common diseases caused by drinking water contaminated with bacteria or viruses.
Symptoms:
Diarrhea
Vomiting
Abdominal cramps
Nausea
Sometimes mild fever
A bacterial disease contracted by contact with water contaminated with animal urine, especially after floods.
Symptoms:
High fever
Headache
Muscle aches
Vomiting
Red eyes
Can affect the liver or kidneys in severe cases
Usually occurs due to drinking water contaminated with E. coli bacteria.
Symptoms:
Diarrhea, sometimes severe
Abdominal cramps
Nausea and vomiting
Occasional fever
The doctor starts by asking important questions to determine the likelihood of infection, such as:
Symptoms (diarrhea, vomiting, etc.)
Duration of symptoms
Source of drinking water
Recent travel or swimming in contaminated water
Eating or drinking from unsafe places
This information helps the doctor identify the type of waterborne disease and order appropriate tests.
The doctor examines the patient for signs of disease, including:
Dehydration or fluid loss
Abdominal pain or cramps
High fever
Yellowing of the skin or eyes (in cases like Hepatitis A)
Stool tests are essential for diagnosing waterborne diseases, as they can detect:
Harmful bacteria (Salmonella, E. coli)
Parasites (Amoeba, Giardia)
Viruses affecting the digestive system
Blood tests help diagnose certain waterborne diseases, such as:
Typhoid
Hepatitis A
They also help evaluate the impact of the disease on the body.
In certain situations, the doctor may request extra tests, such as:
X-rays or ultrasounds to detect organ problems
Special tests to identify specific viruses or bacteria
Additional blood tests to assess liver or kidney function
The most important step in prevention is ensuring that drinking water is clean and free of microbes.
Important tips:
Boil water before drinking if the source is unreliable
Use water purification filters at home
Avoid drinking from unknown or unsafe sources
Washing hands is one of the most effective ways to prevent the spread of germs.
Recommended times to wash hands:
Before eating
After using the toilet
Before preparing food
After touching animals or contaminated surfaces
Contaminated water can transfer germs to food. To reduce risk:
Wash fruits and vegetables with clean water
Peel fruits when possible
Cook food thoroughly to kill microbes
Even clean water can become contaminated during storage.
Tips for safe storage:
Keep water in clean, covered containers
Avoid touching water directly with hands
Clean water containers regularly
Improving sewage systems greatly reduces water contamination and disease spread.
Key measures:
Safe disposal of human and animal waste
Do not throw trash into water sources
Treat sewage before discharge
Persistent diarrhea and vomiting cause loss of fluids and minerals, which can lead to:
Low blood pressure
Weakness
Loss of consciousness in severe cases
Loss of sodium, potassium, and magnesium from diarrhea may cause:
Muscle cramps
Heart problems in severe cases
Some diseases, like Hepatitis A or schistosomiasis, may cause temporary or permanent liver damage. Severe infection or chronic dehydration may also affect kidney function.
Repeated waterborne infections can weaken the immune system, making a person more susceptible to other illnesses, such as:
Respiratory infections
Bacterial infections
Children are more vulnerable due to weaker immune systems and less stored fluid. Complications may include:
Growth delay
Weight loss
Reduced focus and activity
Some diseases can cause:
Headache
Dizziness
Extreme fatigue
In very severe cases, loss of fluids and electrolytes may lead to temporary neurological issues or seizures.
Chronic parasitic infections, such as Giardia or schistosomiasis, may cause:
Persistent digestive problems
Anemia
Liver fibrosis
Repeated infections from continued exposure to contaminated water, impacting long-term health
Essential for diarrhea and vomiting, ORS helps:
Replenish lost fluids
Restore essential electrolytes
Reduce the risk of dehydration
Common use: Severe diarrhea or cholera cases
Used for bacterial waterborne diseases, such as:
Typhoid
Cholera
Bacterial dysentery
⚠️ Important: Must be prescribed by a doctor to prevent antibiotic resistance.
For parasitic infections like amoebiasis or giardiasis, doctors prescribe antiparasitic drugs, such as:
Metronidazole
Tinidazole
These medications eliminate the parasites causing the infection.
Used to alleviate symptoms like fever or pain.
Examples:
Paracetamol
Mild pain relievers
Benefits: Improve patient comfort during treatment
In cases of severe dehydration, patients may require IV fluids in a hospital to rapidly restore fluid balance.
Replenishing fluids is crucial to prevent dehydration from diarrhea or vomiting.
Recommended fluids:
Clean or boiled water
Oral rehydration solutions (ORS)
Light vegetable soups
Rice water
Ginger helps soothe the stomach and improve digestion.
Benefits:
Reduce nausea
Decrease vomiting
Improve digestion
Usage: Drink warm ginger tea once or twice a day
Mint is known for calming the digestive system.
Benefits:
Reduce cramps
Relieve bloating
Soothe the stomach
Usage: Drink warm mint tea after meals
Yogurt contains probiotics, which help restore intestinal balance.
Benefits:
Improve digestive health
Reduce diarrhea
Support immunity
Garlic has antibacterial and antiparasitic properties.
Benefits:
Combat certain bacteria
Support the immune system
Help fight infection
Usage: Add to food to benefit from its health properties