October is here, the skies are clearing, and most of us feel the worst of the monsoon is behind us. Here's the catch: the infections that come with it often peak after the rain. Puddles, overflowing drains, damaged pipelines and half-dried flood water leave behind a perfect breeding ground. If you or someone at home has a fever that won't budge or a stomach that won't settle, this guide is for you.
Why Water Borne Diseases Are Still Active After the Monsoon
Water borne diseases spread when germs from contaminated water or food enter our body. During heavy rain, sewage mixes with drinking water supply, and storage tanks and street-side food get exposed. Once the rain stops, stagnant water stays behind for weeks. That keeps bacteria and viruses alive, and gives mosquitoes a place to breed.
In simple words: the risk doesn't end with the last shower. It lingers until the water around us gets clean and dry again.
Common Water Borne Diseases in India After Monsoon
Here's a quick water borne diseases list of what doctors and labs see most often at this time of year, along with the signs to watch for.
Typhoid Fever
Typhoid disease that is caused by Salmonella Typhi, mostly from eating or drinking infected food and water. Common symptoms include a fever that develops gradually over days, headache, fatigue, stomach pain, constipation or diarrhoea, and loss of appetite.
Cholera Symptoms
Symptoms of cholera appear suddenly and include severe, watery diarrhoea that may be referred to as "rice-water" diarrhoea, vomiting, and muscle cramps in the legs. The main risk comes from dehydration.
Hepatitis A Symptoms and Jaundice Symptoms
Hepatitis A is an infectious disease that occurs in the liver due to viruses present in contaminated water and food. Symptoms of early hepatitis A include tiredness, nausea, fever, and lack of appetite. After a few days, jaundice can be experienced with symptoms of yellow eyes and skin, urine and stools turning dark color.
Leptospirosis Symptoms
This disease occurs due to water contaminated with animal urine after getting into flood water. Symptoms include high fever, muscle pains especially on calves, red eyes and headache. This disease is confused with viral fever
Gastroenteritis and Dysentery
The most common of all. Loose motions, cramps, vomiting and sometimes blood or mucus in the stool point to an intestinal infection from bacteria, viruses or parasites.
Dengue and Malaria: Not Water Borne, But Closely Linked
Strictly speaking, these are mosquito-borne. But because they breed in stagnant water, they peak in the same weeks and share symptoms such as fever, chills, body ache and headache. That's why doctors often test for them together.
Which Tests Do You Need? A Simple Guide
Symptoms alone can't tell these infections apart, since so many begin with fever. A doctor will usually pick the right test based on your symptoms and how many days you've been unwell.
Typhoid Test
The standard tests conducted for typhoid fever include a blood culture, Widal test, and Typhidot test. Among all the three tests, blood culture is the most accurate one and should be done in the first week. The Widal test is widely performed in India, but a physician should interpret its results, as it might come out to be non-specific in the first week.
Dengue Test
The choice of test for dengue fever should depend upon the time frame. In the initial days after fever onset, the NS1 antigen test should be conducted, whereas IgM and IgG antibody tests are conducted at a later stage. CBC (Complete Blood Count) is usually recommended in addition to that, as platelets are monitored in dengue.
Stool Test
A stool test (routine examination and culture) helps identify the cause of diarrhoea, whether bacterial, parasitic or other. In suspected cholera, the lab looks for the specific bacteria in the sample.
Hepatitis A Test and Liver Function Test
A hepatitis A test checks for anti-HAV IgM antibodies, which indicate a recent infection. A liver function test (LFT) shows how much your liver is affected, and is especially useful if you have jaundice.
Malaria Test
A malaria test is done through a rapid antigen test or a peripheral blood smear. It's usually advised when fever comes with chills and shivering.
Leptospirosis Tests
Blood tests such as IgM ELISA help confirm leptospirosis. Tell your doctor if you've walked through flood or dirty water recently, as this detail guides the choice of test.
Water Borne Diseases Prevention: Small Habits That Help
The good news is that most of these infections are preventable with everyday care:
- Drink safe water. Boil it, or use a filter you service regularly. Don't trust roadside water or ice.
- Wash hands properly with soap before eating and after using the toilet.
- Eat freshly cooked food and be cautious with cut fruit, chaat and street-side drinks for now.
- Clean water tanks and storage containers, and keep them covered.
- Don't let water stagnate in coolers, pots, tyres or terraces. This helps with mosquito control too.
- Avoid wading through flood water, and wash your feet and legs well if you can't.
Get vaccinated where advised. Typhoid and hepatitis A vaccines are available, so talk to your doctor, especially for children.
When Should You See a Doctor?
Don't wait it out if you notice any of these:
- Fever lasting more than two to three days
- Repeated vomiting or diarrhoea, or signs of dehydration (very dry mouth, little urine, dizziness)
- Yellowing of eyes or skin
- Blood in stool
- Severe body pain, rash, or bleeding from gums or nose
- Any of the above in a child, pregnant woman or senior citizen
Avoid self-medicating with antibiotics. The wrong medicine can hide the real problem and make the infection harder to treat.
Final Thoughts
Water borne diseases don't pack up when the monsoon does. A little caution with water, food and hygiene through October and November goes a long way, and an early test can save you days of guesswork. If symptoms show up, get the right test done early rather than guessing.
You can book a typhoid test, dengue test, stool test or full fever panel with Dr. B. Lal Clinical Laboratory, a NABL-accredited diagnostic lab, with home sample collection available in many cities.
