Important update: Healthcare facilities
CDC has updated select ways to operate healthcare systems effectively in response to COVID-19 vaccination. Learn more
Given new evidence on the B.1.617.2 (Delta) variant, CDC has updated the guidance for fully vaccinated people. CDC recommends universal indoor masking for all teachers, staff, students, and visitors to K-12 schools, regardless of vaccination status. Children should return to full-time in-person learning in the fall with layered prevention strategies in place.
The White House announced that vaccines will be required for international travelers coming into the United States, with an effective date of November 8, 2021. For purposes of entry into the United States, vaccines accepted will include FDA approved or authorized and WHO Emergency Use Listing vaccines. More information is available here.

If You Are Sick or Caring for Someone

If You Are Sick or Caring for Someone
Updated Nov. 29, 2022
man doing telehealth call sick in bed

COVID-19 can cause symptoms ranging from mild to very severe. For people who are older or those at high risk of getting very sick from COVID-19, treatment may be available that can reduce the chances of being hospitalized or dying from the disease. Contact a healthcare provider right away or visit a Test to Treat location. Treatment must be started within the first few days to be effective.

Steps to Take When Sick with COVID-19

When to Seek Emergency Medical Attention: If someone is showing any emergency warning signs, call 911.

Stay home and separate from others

When and How to Isolate

Improve ventilation (air flow) at home to help prevent COVID-19 from spreading to other people

Use this interactive tool to learn how to improve air flow at home.

Improving Ventilation in Your Home

Monitor symptoms and follow healthcare provider instructions

Rest, drink fluids, and use over-the-counter medicines for fever.

Symptoms of COVID-19

Practice every day hygiene and cleaning and avoid sharing personal household items

Cleaning Your Home

Wear a high-quality mask or respirator when around other people

Wear a mask with the best fit, protection, and comfort.

For Caregivers

If you are caring for someone with COVID-19:


Archived Content

Search for and find historical COVID-19 pages and files. Please note the content on these pages and files is no longer being updated and may be out of date.

  • Visit for a historical snapshot of the COVID-19 website, capturing the end of the Federal Public Health Emergency on June 28, 2023.
  • Visit the dynamic COVID-19 collection to search the COVID-19 website as far back as July 30, 2021.