What are the best practices for disinfecting and cleaning in daycare settings to prevent illness?

When you drop your child off at daycare, you trust that the environment is not only nurturing but also clean enough to reduce the spread of illness. While no setting can eliminate every germ, research from early childhood health organizations and public health agencies consistently shows that a systematic, layered approach to cleaning and disinfection is one of the most effective ways to keep children and staff healthier. The key is understanding the difference between cleaning, sanitizing, and disinfecting-and knowing when each is appropriate.

Understanding the Three-Layer Approach

Best practices in daycare settings follow a specific sequence. Cleaning physically removes dirt and most germs using soap and water. Sanitizing reduces germs to a safe level, as defined by public health standards, and is typically used for surfaces that come into contact with food or mouths. Disinfecting kills nearly all germs on a surface and is reserved for high-touch items and areas where bodily fluids may be present. A daycare that skips cleaning before disinfecting is not following industry standards.

High-Touch Surfaces Require Frequent Disinfection

According to guidelines from the American Academy of Pediatrics and the Centers for Disease Control and Prevention, high-touch surfaces in a daycare should be disinfected at least daily, and more often during illness outbreaks. These surfaces include:

Door handles, light switches, and handrails.
Tables and chairs used for meals and activities.
Toys that are shared or mouthed by children.
Countertops, sink handles, and changing table surfaces.
Electronic devices such as tablets or touch screens used by staff.

For toys, a common best practice is to rotate them so that a set can be cleaned and disinfected while another set is in use. Soft toys and dress-up clothes that cannot be easily disinfected should be laundered weekly or after any known exposure to illness.

Safe Products and Proper Contact Time

Not all disinfectants are safe for use around children. Daycares should use products that are EPA-registered for use in early childhood settings and follow the manufacturer's instructions for contact time. The contact time is the amount of time the surface must remain wet with the product to effectively kill germs. Many parents are surprised to learn that a quick wipe with a disinfectant spray often does not meet the required contact time, which may be several minutes. Staff should be trained to read labels and apply products correctly, or use a diluted bleach solution prepared fresh daily according to public health guidance.

Diapering and Bathroom Areas Require Special Protocols

These areas present the highest risk for spreading germs, including norovirus and E. coli. Best practices in a licensed daycare include:

Using disposable paper liners on changing tables.
Changing the paper liner between each child.
Cleaning the changing table surface with soap and water, then disinfecting.
Washing hands thoroughly after each diaper change.
Having a dedicated sink for handwashing that is separate from food preparation areas.

In bathrooms, high-touch surfaces such as toilet handles, faucet knobs, and stall doors should be disinfected at least twice daily, and more often during outbreaks.

Hand Hygiene Is the Foundation

No amount of surface cleaning can replace diligent hand hygiene. The single most effective practice for preventing illness in a daycare is frequent, proper handwashing by both children and staff. Best practices include:

Handwashing upon arrival at the center.
Before and after eating or handling food.
After using the toilet or after a diaper change.
After playing outside or with shared toys.
After blowing a nose, coughing, or sneezing.

Alcohol-based hand sanitizer can be used as a supplement when soap and water are not available, but it should not replace handwashing, especially after using the bathroom or when hands are visibly dirty.

Ventilation and Outdoor Air Flow

Increasingly, research points to the importance of ventilation in reducing airborne illness. Daycares can support cleanliness by opening windows when weather allows, using high-efficiency air filters, and ensuring that HVAC systems are maintained regularly. This is not a substitute for surface cleaning, but it adds an important layer of protection.

What Parents Can Ask Their Daycare Provider

When you are evaluating a daycare or checking in on your current provider, you can ask these practical questions to understand their cleaning protocols:

How often are high-touch surfaces like toys, tables, and door handles disinfected?
What cleaning products do you use, and are they safe for children?
How do you handle cleaning after a child shows symptoms of illness?
Can you describe your handwashing routines for both children and staff?
How do you manage ventilation in the classroom?

These questions help you assess whether the center follows evidence-based practices. No daycare can promise zero illness, but a program that prioritizes disinfecting high-touch surfaces, using the correct products and contact times, and enforcing rigorous hand hygiene is giving your child the best possible defense against common infections. Always verify that a center's policies align with your state's licensing requirements, as these rules are designed to protect the health of all children in care.