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Signs and symptoms of coronavirus disease 2019 (COVID-19) may appear two to 14 days after exposure. This time after exposure and before having symptoms is called the incubation period. Common signs and symptoms can include: 1. Fever 2. Cough 3. Tiredness Early symptoms of COVID-19may include a loss of taste or smell. Other symptoms can include: 1. Shortness of breath or difficulty breathing 2. Muscle aches 3. Chills 4. Sore throat 5. Runny nose 6. Headache 7. Chest pain 8. Pink eye (conjunctivitis) 9. Nausea 10. Vomiting 11. Diarrhea 12. Rash This list is not all inclusive. Children have similar symptoms to adults and generally have mild illness. The severity of COVID-19symptoms can range from very mild to severe. Some people may have only a few symptoms, and some people may have no symptoms at all. Some people may experience worsened symptoms, such as worsened shortness of breath and pneumonia, about a week after symptoms start. People who are older have a higher risk of serious il...

Infection with the new coronavirus (severe acute respiratory syndrome coronavirus 2, or SARS-CoV-2) causes coronavirus disease 2019 (COVID-19). The virus that causes COVID-19spreads easily among people, and more continues to be discovered over time about how it spreads. Data has shown that it spreads mainly from person to person among those in close contact (within about 6 feet, or 2 meters). The virus spreads by respiratory droplets released when someone with the virus coughs, sneezes, breathes, sings or talks. These droplets can be inhaled or land in the mouth, nose or eyes of a person nearby. In some situations, the COVID-19virus can spread by a person being exposed to small droplets or aerosols that stay in the air for several minutes or hours — called airborne transmission. It's not yet known how common it is for the virus to spread this way. It can also spread if a person touches a surface or object with the virus on it and then touches his or her mouth, nose or eyes, but the...

Risk factors for COVID-19appear to include: 1. Close contact (within 6 feet, or 2 meters) with someone who has COVID-19 2. Being coughed or sneezed on by an infected person

Although most people with COVID-19 have mild to moderate symptoms, the disease can cause severe medical complications and lead to death in some people. Older adults or people with existing medical conditions are at greater risk of becoming seriously ill with COVID-19. Complications can include: 1. Pneumonia and trouble breathing 2. Organ failure in several organs 3. Heart problems 4. A severe lung condition that causes a low amount of oxygen to go through your bloodstream to your organs (acute respiratory distress syndrome) 5. Blood clots 6. Acute kidney injury 7. Additional viral and bacterial infections

The U.S. Food and Drug Administration (FDA) has given emergency use authorization to some COVID-19 vaccines in the U.S. A vaccine can prevent you from getting the COVID-19 virus or prevent you from becoming seriously ill if you get the COVID-19 virus. Also, if you are fully vaccinated, you can return to many activities you may not have been able to do because of the pandemic — including not wearing a mask or social distancing — except where required by a rule or law. However, if you are in an area with a high number of new COVID-19 cases in the last week, the CDCrecommends wearing a mask indoors in public. If you are fully vaccinated and have a condition or are taking medications that weaken your immune system, you may need to keep wearing a mask. The CDC recommends a third dose of an mRNA COVID-19 vaccine for some people with weakened immune systems, such as those who have had an organ transplant. People with weakened immune systems might not develop enough immunity after vaccinati...