Slow the Spread

This guidance is based on updated CDC recommendations for preventing respiratory viruses in most people. The March 2024 guidance provides a unified approach to addressing risks from a range of common respiratory viral illnesses, such as COVID-19, flu, and RSV.


Diagram showing layered prevention strategies for slowing the spread of respiratory illness, including vaccination, hygiene, ventilation, masking, distancing, and testing.

Adapted from Ian Mackay, The Swiss Cheese Infographic that Went Viral, Dec 2020


Respiratory illnesses like COVID-19, flu, and RSV, can spread from person to person. To limit the spread of these illnesses, follow these tips:

Stay up to date on vaccines

  • Stay up to date on vaccines for respiratory illness. Find COVID-19 and flu vaccine appointments with Vaccinefinder.org.
  • Ask your healthcare provider about getting protected from RSV, especially if you:
    • Are over 60 years old (for vaccine)
    • Are 32–36 weeks pregnant during September–January (to protect newborns)
    • Have an Infant born during or entering first respiratory illness season (for antibodies)

Clean frequently touched surfaces

  • Clean and disinfect frequently touched surfaces regularly (at least daily when someone in household is sick).

Wash hands, cover coughs/sneezes

Improve indoor air

Stay away from others if sick

  • Stay home and away from others for at least 24 hours until both are true:
    • Your symptoms are improving (if you had symptoms) and
    • You are fever-free (without using fever-reducing medicine).
  • Use separate bathroom and bedroom from others, if possible.

Wear a mask

  • Wear a mask with the best fit, protection, and comfort, when required or recommended.
  • You may choose to mask at any time.
  • People with symptoms, a positive test, or exposure to a respiratory illness should wear a high-quality mask or respirator when indoors in public.

Keep safer distances from others

Get tested

  • Get tested
    • A test can tell you what illness you have, and inform your treatment and prevention actions.
    • A healthcare provider can tell you if you need a test. You can buy some tests over the counter.
    • Consider testing before you are around anyone at high risk, and especially if you or a household member are at risk for serious illness from a respiratory infection.
  • For COVID–19 or flu, your provider may prescribe medicines to make your symptoms less severe or shorten the time you are sick.