Ebola Prevention for Healthcare Workers: PPE, IPC, and Safe Procedures

Why Healthcare Workers Are at High Risk

Healthcare workers face a disproportionate risk of Ebola infection. In every major outbreak, nurses, doctors, cleaners, and other facility staff have died in significant numbers:

West Africa 2014–2016: Over 500 healthcare workers died — the largest healthcare worker toll in Ebola history
DRC Kivu 2018–2020: 168 healthcare worker infections
2026 DRC outbreak: 2 confirmed healthcare worker infections as of May 2026

The risk is highest during patient care activities involving direct body fluid contact, aerosol-generating procedures, and donning/doffing PPE incorrectly. The good news: with proper training and equipment, healthcare worker infection is largely preventable.

WHO’s Infection Prevention and Control Framework

WHO’s IPC guidelines for EVD are built on four tiers:

Standard precautions: apply to ALL patients, regardless of diagnosis
Contact precautions: additional barrier measures for confirmed/suspected EVD
Droplet precautions: for procedures that may generate respiratory droplets
Airborne precautions: for aerosol-generating procedures (AGPs)

Personal Protective Equipment (PPE)

Minimum PPE for Patient Care

WHO recommends the following minimum PPE for caring for a confirmed or suspected Ebola patient:

Item	Purpose
Impermeable gown or coverall	Body fluid barrier
Apron (over gown)	Additional protection from splashes
Gloves (double-gloving recommended)	Hand protection
N95 respirator or FFP2	Respiratory protection
Full face shield or goggles	Eye/face protection
Boots or overshoes	Foot protection
Hood or head cover	Head/neck protection

Selecting the Right PPE Level

Standard patient care (history-taking, physical exam with intact skin): Full barrier PPE as above.

High-risk procedures requiring enhanced PPE:

Placement of IV/IO lines
Blood draws and sample collection
Intubation or airway management
Cardiopulmonary resuscitation
Wound care
Childbirth
Post-mortem examination

For aerosol-generating procedures, a powered air-purifying respirator (PAPR) provides additional protection above the N95.

Donning (Putting On) PPE: Sequence Matters

The sequence for donning PPE must be followed precisely. The most critical principle: PPE can only protect you if the contaminated outer surfaces never touch your skin or mucous membranes.

Recommended donning sequence (WHO/CDC):

Perform hand hygiene (alcohol-based hand rub or soap and water)
Put on inner gloves
Put on impermeable gown/coverall
Put on apron
Put on boots/overshoes
Put on N95 respirator — perform seal check
Put on goggles or face shield
Put on hood
Put on outer gloves over gown cuffs
Final inspection by a trained observer

A trained observer (buddy system) is essential. No healthcare worker should don or doff PPE alone.

Doffing (Removing) PPE: The Highest-Risk Step

Doffing is when most healthcare worker infections occur. The outer surfaces of PPE are contaminated with Ebola virus, and touching your face, skin, or eyes during removal can cause infection.

Recommended doffing sequence:

Disinfect outer gloves (chlorine solution or ABHR)
Remove apron (roll outward, away from body)
Remove outer gloves — dispose immediately
Hand hygiene
Remove gown/coverall (roll inward, away from body)
Hand hygiene
Remove boots/overshoes
Hand hygiene
Remove hood
Remove face shield/goggles (handle by strap, not front)
Hand hygiene
Remove N95 respirator (handle by straps)
Remove inner gloves
Thorough hand washing with soap and water

Each step requires hand hygiene. The entire process should be supervised.

Environmental Decontamination

Ebola virus can survive on surfaces for several hours at room temperature and longer at lower temperatures. Environmental decontamination protocols:

0.5% chlorine solution: used for surface decontamination of floors, beds, equipment
0.05% chlorine: used for hand hygiene when alcohol is unavailable
All waste (PPE, patient materials, bed linens) must be disposed of as Category A infectious waste — incineration preferred
Patient rooms should be cleaned and disinfected after each patient, using chlorine solution and disposable materials

Sample Collection and Laboratory Safety

Blood and other clinical specimens from EVD patients present extreme infection hazard:

Triple packaging: specimen container → sealed bag → outer rigid container
Label all samples with biohazard symbol
Use BSL-3 or BSL-4 laboratory conditions for viral culture
PCR testing for Ebola can be performed at BSL-2 with inactivated samples

Safe Injection Practices

The 1976 Yambuku outbreak was dramatically amplified by reuse of contaminated needles in a mission hospital. This must never happen:

Single-use, auto-disabling syringes must be used for all injections
Never recap needles
Use a sharps container for immediate needle disposal
Post-exposure protocol: immediate wound cleansing, reporting, and monitoring

Post-Exposure Management

If a healthcare worker has a potential exposure (needlestick, splash to mucous membrane, unprotected skin contact):

Immediately wash the area with soap and water (10 minutes for wounds)
For eye/mucous membrane exposure: flush with clean water for 10–15 minutes
Report immediately to the IPC supervisor
Initiate daily monitoring for 21 days (the maximum incubation period)
Consider post-exposure prophylaxis with rVSV-ZEBOV vaccine — evidence from DRC suggests benefit when given promptly
Healthcare worker placed on administrative leave during monitoring period

Psychological Support

Healthcare workers in Ebola response face extreme psychological stress — fear of infection, stigmatisation by communities, exhaustion from PPE use in hot climates, and grief from patient deaths. Mental health support must be integrated into all EVD responses:

Regular debriefing sessions
Peer support programs
Clear communication about exposure risks
Financial protection (insurance, hazard pay) to reduce hesitancy to report symptoms