PART 01

Event Review

“Chain Infection” in Nursing Homes

Recently, a large nursing home in East China had an outbreak of Norovirus infection, with many elderly people and caregivers experiencing symptoms such as vomiting and diarrhea.

The trajectory of the disease is as follows:

● The first patient was a semi-disabled elderly person, who was assisted in eating and cleaning by a caregiver

● The caregiver was a virus carrier and neglected disinfection and hand hygiene

● The disease spread to more than 10 elderly people within 3 days, and 2 caregivers developed symptoms

● The disease control agency intervened and initially confirmed it as a “local outbreak caused by the nursing transmission chain”

PART 02

Transmission characteristics of Norovirus

Norovirus is the “most cunning” of gastrointestinal viruses, and is particularly suitable for “flash” transmission in nursing homes, schools, and closed places.

Its three major transmission advantages:

● Ultra-low infection dose: 10 to 100 virus particles can cause disease

● Super strong environmental survival: can survive on the surface for 7 days+

● Wide transmission routes: including human-to-human transmission, food and water transmission

This on-site investigation found that it was transmitted from person to person, and the virus contamination was concentrated in:

● Door handles, bed rails, table and chair armrests

● Faucets (sinks, kettle buttons, etc.)

● Toilets (toilet seats, flush buttons, sinks)

PART 03

Fantong Bio intervenes

VHP terminal disinfection “precision strike”

In order to curb the virus transmission chain, the nursing home introduced Fantong Bio’s vaporized hydrogen peroxide (VHP) disinfection system for terminal disinfection.

✅ Disinfection method:

Full space VHP inactivation technology

● Through the gaseous H₂O₂ disinfection factor, no dead angle, non-contact disinfection is achieved

● Can kill viruses, bacteria, spores and other pathogens, especially suitable for nursing homes, ICUs, and epidemic source environments

✅ Disinfection key areas:

Area

Disinfection target

Door handle

Cut off the contact transmission chain

Faucet

Eliminate cross-contamination between hands and mouth

Toilet area

High risk point of fecal-oral transmission

Nursing operation area

Cross-contamination source of tools and clothing

✅ Brief operation process:

Enclosed space → Pretreatment cover → VHP release → Maintaining effect → Air exchange recovery → On-site virus detection verification

PART 04

Results feedback

No new cases, virus “zero”

● No new cases within 72 hours after terminal disinfection

● All environmental virus swab tests turned negative

● Disease control assessment as a typical case of “timely intervention and effective control”

PART 05

Experts remind

Three key words for epidemic prevention in nursing homes

Prevention and control of norovirus in nursing homes is not as simple as “disinfection once”:

1. Routine prevention and control

● Caregivers must implement the “five-step hand washing method”

● High-frequency contact points should be disinfected and wiped more than twice a day

2. Quick response

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● Once an elderly person vomits or has diarrhea, immediately isolate + close the room

● Simultaneously start terminal disinfection assessment

3. Scientific disinfection

● For virus contamination, high-level disinfection methods such as vaporized hydrogen peroxide should be used

● Do not simply use alcohol spray or bleach to wipe

#Disinfection Science #VHP Terminal Disinfection #Nursing Home Epidemic #Norovirus #Environmental Disinfection