> *Between February 2025 and January 2026, sewage-contaminated piped water triggered disease outbreaks in at least 26 cities across 22 states and union territories, revealing a chronic, year-round urban crisis* Above byline that appears in [a Down To Earth article from January this year](https://www.downtoearth.org.in/water/unsafe-water-year-round-over-5500-fell-sick-34-died-due-to-contaminated-tap-water-across-india-in-last-12-months) summarising a governance crisis that appears as if it is a medical/health crisis summarises a widespred problem. What we see in this article and in a series of other press coverage in 2025 is instances where we had outbreak data. THere are possibly tens if not hundreds more outbreaks in small towns and cities where we had no data (What we dont measure/asses, we may not see - tangentialy speaking a counter to critics of positivist measurement streak that prevails in public health and rightly criticised for its overwhelm, but perhaps OUGHT to be much more visible in governance but absent!). The latest one in Gandhinagar even had the [National Human Rights Commissino taking *suo motu* cognizance](https://www.pib.gov.in/PressReleasePage.aspx?PRID=2212381&reg=3&lang=1), and asks for a report in two weeks (further coverage of the NHRC ask [here in *The Hindu*](https://www.thehindu.com/news/national/gujarat/nhrc-issues-notice-to-gujarat-government-over-surge-in-the-typhoid-cases-in-gandhinagar/article70486729.ece). The Gandhinagar deaths followed another [visible outbreak in Indore](https://en.wikipedia.org/wiki/2025_Indore_drinking_water_contamination)....sparking possibly an alertness for "reporting" similar outbreaks elsewhere - [see the Bangalore reports for eg.](https://timesofindia.indiatimes.com/india/water-contamination-scare-now-in-gandhinagar-bluru-gastrointestinal-illness-typhoid-cases-see-a-spike/articleshow/126327613.cms) (possibly were always happenign but such high press visibility creates scope for press covrage and surfacing of a problem that is always there but often not visible) - [ ] Obtain report submitted to NHRC & screen for analysis of governance failure - [ ] Scan for any such post-mortems of such incidents in other outbreak cities in 2025 - [ ] Understand from systems lens - what is being problematised and what is not; what ought to have been done Some queries that came from the Kushagra Bharadwaj of Deccan Herald pushed me in terms of thinking of building towards an eventual systems/governance analysis and an action framework on this..... 1. What are the specific diseases and symptoms people develop within hours or days of drinking sewage-contaminated water, and how do doctors differentiate between bacterial infections like E. coli, Salmonella, and cholera? > When sewage enters drinking water, the commonest illnesses are acute gastroenteritis and acute watery diarrhoea, sometimes with vomiting, abdominal cramps, fever, and rapid dehydration. In severe cases, especially in the case of cholera, people can develop profuse watery diarrhoea and dehydration that can become dangerous very quickly...sometimes in a matter of hours. Symptoms across E. Coli, Salmonella and other bacterial infections (and even many viral diarrhoeas for example) may overlap. Doctors use a mix of clinical parameters like Speed and severity (very rapid onset of large-volume watery stools with severe dehydration raises suspicion of cholera-like illness (but needs confirmation), fever pattern (higher fever and systemic toxicity can point more towards invasive infections (e.g., Salmonella), while cholera often presents predominantly with dehydration. (Still not definitive.), stool features (blood/mucus suggests dysentery (often Shigella), not classic cholera....in addition to these clincial parameters, the actual diagnosis is always based on laboratory confirmation (stool culture, rapid tests, blood tests and blood cultures). From a public-health standpoint, the priority in the first hours is treat dehydration and shock....the idea of a lab confirmation and diagnosis is only after stabilising/responding to the dehydration. THis can happen even in rural/urban priamry health centers and our PHC health workers often know how to respond to gastroenteritis immediately with ORS and referrals. In fact infants and children are MOST susceptible and need quick resposnse. 2. What determines whether contaminated water exposure becomes fatal, and which age groups or health conditions are most vulnerable? > Rapid fluid loss results in severe dehydration which in turn leads to what we call "shock" which in turn can result in kidney failure, electrolyte imbalance, sometimes compounded by sepsis (infection is within the entire system/body). WHO is very clear that cholera can be fatal within hours if untreated, but outcomes are excellent with timely treatment. Risk of death rises with: Delay in starting ORS/IV fluids, or poor access to a PHC/health facility that can provide rapid rehydration, heavy contamination (large volumes of infected water/food has been drunk), and co-infections.. in addition some people are more vulnerable especially infants and young children, older persons, pregnant women, people with exisitng malnutrition, anaemia, chronic kidney disease, diabetes, or immunocompromising conditions. In plain terms, the same contaminated water event can cause mild illness in some, but become life-threatening where dehydration is rapid and care is delayed....and such issues disproportionately affect the poor and socially disadvantaged due to theor prior nutritional and social vulnerabilities which coudl lead to severity of the infection. 3. Beyond the immediate outbreak, what long-term diseases or health problems do survivors of severe waterborne infections face months or years later? > Most people recover fully, but severe or repeated infections can indeed cause long-term impact especially in children and under-nourished adults (poor, migrant communities and anyone who is not living in relative social and economic stability). Post-infectious weakness and weight loss, sometimes prolonged. In children, repeated enteric infections are associated with growth faltering and can be linked to delayed cognitive development and poorer school performance (through pathways like recurrent inflammation and poor nutrient absorption). So the long-term burden is not only “rare complications”; it is also the quieter, cumulative impact on nutrition, growth, and learning, particularly where unsafe water becomes a recurring exposure. For example if poor quality drinking water outbreaks are undetected and persist for years, it may indeed hinder early childghood nutrition and development and in fact significantly contribute to India's existing malnutrition and child health problems. > > at least in the case of Indore and Gandhinagar, we are aware of the magnitude of the problem because it was widely covered in the press. What about various other towns and cities where these are not widely reported and probably poor monitoring and poor governance causes a chronicity of waterborne illnesses to persist within children and households. This is indeed an issue of governance itself rather than merely being a public health issue. 4. When hospitals suddenly receive dozens of patients with waterborne diseases during an outbreak, do they have adequate supplies of antibiotics and rehydration therapy? > In a well-prepared system, rehydration supplies (ORS and IV fluids) should be immediately available, because they are the core life-saving intervention for diarrhoeal outbreaks. WHO and UNICEF consistently emphasise ORS (and zinc for children) as foundational. India’s public system does plan for this...for example, operational guidance under Ayushman BHarat and various guidelines by state and national governments emphasise on the need for ORS–Zinc availabiltiy in all sub-centers & PHC and government hospitals....But on the ground, during sudden clusters, facilities may face practical bottlenecks such as temporary stock-outs, espeically in districts/cities where monitoring is weak. > > similarly, the lack of sufficient workforce in the form of health workers, such as community health officers, ANMs, and ASHAs, is also an important factor. For example, Indian cities have not properly adopted the primary health care framework, hence the kind of structured primary health care implemented in rural areas does not exist properly in large cities. Partially, this is because city administration is invariably by corporations, which are autonomous, and they often do not prioritize public health. They often prioritize hospitals, which is a huge problem, because outbreaks of gastroenteritis and the health of populations must be administered through well-resourced public health departments, which are currently lacking in large cities, including Bangalore. > > Antibiotic use must be rational (not everyone needs antibiotics....dehydration management comes first. antibiotics are targeted for specific indications such as severe cholera-like illness or confirmed typhoid as per standard practice). A key governance lesson is that outbreaks expose whether supply chains and emergency logistics are robust at the last mile. > 5. Why were over 150 children affected in Gandhinagar's typhoid outbreak, Are children more susceptible to waterborne diseases than adults, and what are the developmental impacts of repeated exposure? > In the Gandhinagar outbreak, reporting indicates 150+ hospitalisations including many children, with concerns linked to contamination/leakages in water systems. Children are often disproportionately affected because they drink water (and consume beverages/ice) in schools/hostels and community settings where hygiene control is variable (again a governance issue and not an individual behaviour issue), they have lower fluid reserves, so dehydration affects them faster and they are more likely to be exposed to contaminated environments (play, hand-to-mouth behaviour). Typhoid typically presents with prolonged fever, fatigue, headache, abdominal pain, sometimes diarrhoea/constipation.... and severe disease can have serious complications if diagnosis and appropriate antibiotics are delayed. On the developmental impact, it is widely known now through multiple global research studies that repeated enteric infections are not just episodes to be treated but they build up through childhood and result in persistent undernutrition and growth faltering of the child eventually also translating into poor school performance, poor cognition in later life. 5. Do people who regularly consume partially contaminated water develop any resistance, or does repeated exposure actually make them more vulnerable to severe infections when contamination worsens? > People sometimes assume “we’re used to it,” but that is not a safe public-health argument. While partial immunity to specific organisms can occur, it is unreliable and incomplete, and it does not protect against sudden spikes in contamination (higher dose), different pathogens, or the cumulative harms of repeated infection. Repeated exposure especially in children can actually increase vulnerability by contributing to poor nutrition, gut inflammation, and growth faltering, which then reduces resilience when a bigger exposure occurs. So the practical message is: there is no acceptable “safe” level of sewage contamination, and “getting used to it” can hide chronic damage. 6. From a public health standpoint, how many of the 34 deaths from contaminated tap water in 2025-26 were completely preventable with timely medical intervention, and what does that say about our healthcare response system? > We cannot assign an exact number without case-by-case clinical audits (cause of death, time-to-care, co-morbidities, and whether the exposure was cholera-like, typhoid, etc.). We need to ensure accountability for every outbreak and evaluate our governance systems, as it is the people's right to access safe drinking water, which is also one of the sustainable development goals. What is heartening, though, is that the National Human Rights Commission seems to have requested a report. I hope the report will look into the systemic issues not only in Gandhinagar but in various Indian cities, which need careful analysis and resolution. > > What we can say confidently from decades of outbreak experience is that a large proportion of deaths from acute watery diarrhoea are preventable because the main mechanism which is dehydration can be rapidly reversed with ORS and IV fluids, and targeted antibiotics where indicated. Therefore, when deaths occur, it often signals late recognition, delayed referral, gaps in emergency readiness, or barriers in access...especially for the poorest households. Systemically, it tells us we are still treating these events as “medical emergencies” after people fall sick, rather than as governance failures in safe water delivery and early warning. 8. Are hospitals and clinics required to report sudden spikes in diarrheal diseases, typhoid, or gastroenteritis to a centralised system that could identify contamination events early, and if not, why isn't this mandatory? > India does have an established surveillance mechanism - the Integrated Disease Surveillance Programme (IDSP) receives weekly outbreak surveillance reports from States/UTs, and even “nil reporting” is mandatory. IDSP also uses structured reporting formats (suspected/presumptive/lab-confirmed). The system is being digitised and strengthened through the IDSP–IHIP platform, including alert and outbreak-investigation functions. So “is there a system?”—yes. The operational challenge is more about how well it functions in real time, especially in terms of "outbreak response". Large cities in India have not sufficiently created their own separate public health management cadre and hence even though surveillance in terms of reporting to the state and central governments is robust, actual action on ground is tough because of the lack of robust public health management departments and cadres within large city corporations. On the other hand, state level health departments have several decades of experience in public health and that is the reason why outbreaks in rural areas are able to leverage on a separate public health approach and primary health care systems and health workers and hence they tend to be better off....in addition, private providers and smaller facilities do not consistently report, lab confirmation may be delayed, and accountability is split across departments. From a governance lens, diarrhoeal spikes should trigger a joint public-health and water-utility incident response within hours (not days), with clear thresholds, shared dashboards, and public risk communication. ![[WhatsApp Image 2026-02-08 at 14.05.05.jpeg]] Last updated: 2026-02-08 16:03