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Sep 4, 2020 · 23 December 2021 | Q&A. The English version was updated on 23 December 2021. How does COVID-19 spread between people? When do infected people transmit the virus? What is the difference between people who are asymptomatic or pre-symptomatic? Don’t they both mean someone without symptoms?
- Overview
- Symptoms
- Causes
- Risk Factors
- Complications
- Prevention
COVID-19, also called coronavirus disease 2019, is an illness caused by a virus. The virus is called severe acute respiratory syndrome coronavirus 2, or more commonly, SARS-CoV-2. It started spreading at the end of 2019 and became a pandemic disease in 2020. The virus that causes COVID-19 spreads most commonly through the air in tiny droplets of fl...
Typical COVID-19symptoms often show up 2 to 14 days after contact with the virus. Symptoms can include: 1. Dry cough. 2. Shortness of breath. 3. Loss of taste or smell. 4. Extreme tiredness, called fatigue. 5. Digestive symptoms such as upset stomach, vomiting or loose stools, called diarrhea. 6. Pain, such as headaches and body or muscle aches. 7....
COVID-19is caused by infection with the severe acute respiratory syndrome coronavirus 2, also called SARS-CoV-2. The coronavirus spreads mainly from person to person, even from someone who is infected but has no symptoms. When people with COVID-19 cough, sneeze, breathe, sing or talk, their breath may be infected with the COVID-19virus. The coronav...
The main risk factors for COVID-19are: 1. If someone you live with has COVID-19. 2. If you spend time in places with poor air flow and a higher number of people when the virus is spreading. 3. If you spend more than 30 minutes in close contact with someone who has COVID-19. Many factors affect your risk of catching the virus that causes COVID-19. H...
Complications of COVID-19include long-term loss of taste and smell, skin rashes, and sores. The illness can cause trouble breathing or pneumonia. Medical issues a person already manages may get worse. Complications of severe COVID-19illness can include: 1. Acute respiratory distress syndrome, when the body's organs do not get enough oxygen. 2. Shoc...
The Centers for Disease Control and Prevention (CDC) recommends a COVID-19 vaccine for everyone age 6 months and older. The COVID-19 vaccine can lower the risk of death or serious illness caused by COVID-19. It lowers your risk and lowers the risk that you may spread it to people around you. The COVID-19vaccines available in the United States are: ...
Dec 19, 2023 · COVID transmission period. People seem to be most infectious about 2 days before they have symptoms and early on. If you have severe symptoms, the illness can be contagious for longer. People ...
Apr 4, 2024 · How is COVID-19 spread? The virus that causes COVID-19 spreads mainly from person to person. It can spread from people who are infected but have no symptoms. When people with COVID-19 cough, sneeze, breathe, sing or talk, the virus carried on their breath can land on the faces of people nearby.
Mar 16, 2020 · The coronavirus disease 19 (COVID-19) is a highly transmittable and pathogenic viral infection caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which emerged in Wuhan, China and spread around the world.
COVID-19 is mainly transmitted when people breathe in air contaminated by droplets / aerosols and small airborne particles containing the virus. Infected people exhale those particles as they breathe, talk, cough, sneeze, or sing. [1] [2] [3] [4] Transmission is more likely the closer people are.
