Safe water is often treated as basic infrastructure, but in health care it is also a core infection-prevention measure. WHO/Europe has renewed its collaboration with the Institute for Hygiene and Public Health at University Hospital Bonn for another three years, extending a partnership that began in 2001.
The renewed work will focus on water, sanitation and hygiene in health-care facilities, water-related disease surveillance, antimicrobial resistance and climate-related risks. The announcement is institutional rather than a new clinical guideline, but it highlights a persistent health-system vulnerability: care cannot be reliably safe when water quality, sanitation or hygiene systems fail.
Why water safety belongs inside health policy
Health facilities need dependable water for hand hygiene, environmental cleaning, sterilization, patient care, laboratories and sanitation. A supply can appear adequate while still carrying microbiological or chemical risks, or while the facility lacks the monitoring and response procedures needed when conditions change.
WHO promotes a risk-management approach that examines the full chain from the water source to the point of use. That means identifying hazards, evaluating existing controls, monitoring critical measures and planning corrective action before a failure becomes an outbreak.
Legionella remains an important example
The renewed partnership specifically points to Legionella as a significant water-related public health threat. The bacteria can grow in building water systems under favorable conditions and spread through contaminated aerosols. Risk is not determined by the presence of plumbing alone; temperature, stagnation, system design, maintenance and the vulnerability of exposed people all matter.
Hospitals and long-term care facilities require particular attention because some patients are older, immunocompromised or living with chronic illness. Prevention depends on engineering controls, routine management and surveillance rather than on a single test or cleaning event.
The link with antimicrobial resistance
Water, sanitation and hygiene also support the broader response to antimicrobial resistance. Reliable hand hygiene and environmental controls reduce opportunities for infections to spread. Fewer preventable infections can mean less need for antimicrobial treatment and less pressure that favors resistant organisms.
This does not mean water improvements alone can solve antimicrobial resistance. Stewardship, diagnostics, vaccination, surveillance and appropriate prescribing remain essential. Water safety is one part of a connected prevention system.
Climate change adds operational pressure
Droughts, floods, heat and infrastructure disruption can affect both the quantity and quality of available water. Extreme events may damage treatment systems, contaminate sources or interrupt supplies. Health facilities therefore need plans that cover routine operation as well as emergencies.
A practical water-safety plan normally includes a multidisciplinary team, an up-to-date description of the system, identification of hazardous events, prioritized improvements, operational monitoring and periodic review. The plan should be specific to the building and its patients rather than copied from a generic checklist.
What patients and staff can reasonably expect
Most of the responsibility sits with facility operators, public-health authorities and water providers. Patients should not be expected to audit complex infrastructure. However, visible hygiene failures, prolonged water interruptions or unusual notices about water use deserve prompt clarification from the facility.
For staff, clear reporting routes matter. A leak, temperature problem, low-flow outlet or lapse in cleaning may look minor but can signal a wider control failure. Reporting and investigating such observations supports prevention.
A long partnership, with practical tests ahead
WHO’s renewed collaboration with the Bonn institute is designed to strengthen guidance, surveillance and capacity across the European Region. Its value will depend on how technical knowledge is translated into local systems that are maintained, monitored and improved over time.
Safe water in health care is not a background service. It is part of the clinical environment, infection prevention and public confidence. The renewed partnership is a reminder that this foundation requires continuous attention, particularly as climate and antimicrobial-resistance pressures grow.
Evidence source: WHO/Europe. Image: Swanky Fella / Unsplash, used under the Unsplash License.
