The virus that causes COVID-19 is thought to spread mainly from person to person, mainly through respiratory droplets produced when an infected person coughs, sneezes, or talks. These droplets can land in the mouths or noses of people who are nearby or possibly be inhaled into the lungs. Spread is more likely when people are in close contact with one another (within about 6 feet).

Wear masks in public settings when around people not living in your household and particularly where other social distancing measures are difficult to maintain, such as grocery stores, pharmacies, and gas stations. Masks may slow the spread of the virus and help people who may have the virus and do not know it from transmitting it to others. COVID-19 can be spread by people who do not have symptoms and do not know that they are infected. That’s why it’s important for everyone to practice social distancing (staying at least 6 feet away from other people) and wear masks in public settings. Masks provide an extra layer to help prevent the respiratory droplets from traveling in the air and onto other people.

The CDC encourages people who are well to continue to donate blood if they are able, even if they are practicing social distancing because of COVID-19. The CDC is supporting blood centers by providing recommendations that will keep donors and staff safe. Examples of these recommendations include spacing donor chairs 6 feet apart, thoroughly adhering to environmental cleaning practices, and encouraging donors to make donation appointments ahead of time.

There is still a lot that is unknown about COVID-19 and how it spreads. Coronaviruses are thought to be spread most often by respiratory droplets. Although the virus can survive for a short period on some surfaces, it is unlikely to be spread from domestic or international mail, products or packaging.

Look for emergency warning signs for COVID-19. If someone is showing any of these signs, seek emergency medical care immediately:  Trouble breathing, Persistent pain or pressure in the chest, New confusion, Inability to wake or stay awake, and Bluish lips or face. This list is not all possible symptoms. Please call your medical provider for any other symptoms that are severe or concerning to you.

People at increased risk include older adults and people of all ages with certain underlying medical conditions. Pregnant people might also be at increased risk of severe illness from COVID-19. Long-standing systemic health and social inequities have put many people from racial and ethnic minority groups at increased risk of getting sick and dying from COVID-19. In addition to those at increased risk, there are certain groups of people who require extra precautions during the pandemic.

Yes, it is possible. You may test negative if the sample was collected early in your infection and test positive later during this illness. You could also be exposed to COVID-19 after the test and get infected then. Even if you test negative, you still should take steps to protect yourself and others.

Most people who get COVID-19 will be able to recover at home. The CDC has directions for people who are recovering at home including: Stay home when you are sick, except to get medical care. Use a separate room and bathroom for sick household members (if possible). Wash your hands often with soap and water for at least 20 seconds, especially after blowing your nose, coughing, or sneezing; going to the bathroom; and before eating or preparing food. If soap and water are not readily available, use an alcohol-based hand sanitizer with at least 60% alcohol.  Provide your sick household member with clean disposable facemasks to wear at home, if available, to help prevent spreading COVID-19 to others. Clean the sick room and bathroom, as needed, to avoid unnecessary contact with the sick person.