Hospital infection prevention in high-risk scenarios

Headshot of Brooke Hossfeld, Infection Prevention Specialist for Sodexo Healthcare.
Brooke Hossfeld, MPH, CIC, MLS (ASCP)CMInfection Prevention Specialist, Sodexo Healthcare

Key takeaway

In high-risk scenarios, infection prevention depends on more than clinical protocols. EVS teams play a critical role in reducing transmission risk, protecting patient environments and helping hospitals respond safely under pressure.

See how infection prevention works in practice.

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Q: What are the biggest infection prevention risks hospitals face during emergency or quarantine situations?

A: Emergency conditions create immediate strain on standard infection control. Hospitals often deal with personal protective equipment (PPE) shortages, staff fatigue, supply chain disruptions, space constraints and a sharp increase in cleaning demand. These pressures can lead to inconsistent protocols, missed high-touch surfaces, rushed disinfectant contact times and higher risk of cross-contamination.

Q: What roles do Environmental Services (EVS) teams play in these high-risk scenarios?

A: EVS teams are the frontline defense in controlling the healthcare environment. While clinical staff focus on patient care, EVS teams reduce transmission risk by disinfecting high-touch surfaces, managing clean and contaminated zones, handling infectious waste safely and completing detailed terminal cleans. They also help identify and address infection risks in real time.

Q: How should EVS protocols change during an outbreak or quarantine situation?

A: Protocols shift from routine cleaning to a focused biocontainment approach. That can include assigning dedicated staff to quarantine units, increasing cleaning frequency, keeping supplies within containment zones, and using enhanced technologies like UV-C or hydrogen peroxide systems when appropriate. Clear separation of hot, warm and cold zones becomes critical to prevent spread. 

Q: What are the most common gaps in environmental cleaning during emergencies?

A: Common gaps include failing to follow proper disinfectant contact times, not increasing cleaning frequency as planned, overlooking shared and high-touch surfaces, breakdowns in communication with clinical teams, improper PPE use and unintended cross-contamination between areas.

Q: How should EVS teams prioritize cleaning when resources are limited?

A: A risk-based approach is essential. Priority should go to isolation rooms, emergency department and triage areas, public restrooms near entrances, shared clinical workstations and terminal cleans. Secondary focus includes non-isolation patient rooms and clinical corridors. Lower-risk areas like administrative offices and deep floor maintenance may be temporarily reduced to free up resources.

Q: What additional precautions are needed when cleaning isolation or quarantine spaces?

A: PPE compliance is critical, especially during removal, so a buddy system or observer helps reduce exposure risk. Teams should rely on wet cleaning methods to prevent pathogens from becoming airborne and ensure waste is contained and removed safely. Coordination with engineering is also important to allow proper air exchange before entering rooms for terminal cleaning.

Q: How important is communication between EVS, nursing and infection prevention teams?

A: It is essential. Infection prevention sets the strategy; nursing manages care, and EVS controls the environment. Effective teams use real-time communication, joint rounding and shared prioritization to ensure rooms are cleaned safely and efficiently. EVS staff should also feel empowered to speak up if they identify risks.

Q: What training should EVS teams have before an emergency occurs?

A: Preparation should include hands-on PPE training, understanding of transmission types, knowledge of disinfectants and contact times and practice with quarantine workflows. Cross-functional drills with nursing and infection prevention help teams build confidence and respond quickly under pressure.

Q: What tools and technologies are most important during outbreak conditions?

A: Hospitals often rely on EPA-registered disinfectants tailored to the pathogen, including bleach-based or sporicidal products when needed. Accelerated hydrogen peroxide can be useful for faster kill times. UV-C systems provide an added layer after manual cleaning. Validation tools like fluorescent markers help confirm cleaning effectiveness when visual checks are not enough.

Q: What is one key piece of advice for EVS leaders preparing for future emergencies?

A: Position EVS as a core clinical partner before a crisis begins. Involve the team in emergency planning, align training with hospital infection prevention standards and build a culture where EVS staff are confident and empowered to protect patients and colleagues.

Q: How can a partnership with Sodexo benefit a hospital during a crisis or quarantine?

A: Sodexo is an experienced EVS partner that brings structure, scale and infection prevention expertise when hospitals are under the most pressure. During a crisis, Sodexo teams can quickly shift from routine services to a biocontainment-focused approach, deploying trained staff, standardized protocols, and the right disinfectants and technologies to reduce transmission risk and maintain safe patient throughput.

Beyond execution, Sodexo also improves coordination across departments. By aligning closely with nursing, infection prevention and supply chain teams, we can help prioritize high-risk areas, manage PPE and cleaning supply usage, support faster room turnover without compromising safety, and ensure protocols are followed consistently, even during surges. Just as important, we bring ongoing training, validation tools and operational discipline that help hospitals sustain performance when conditions are unpredictable, and resources are stretched. 

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