08/28/2024
We are seeing a lot of Covid-19 since school started.
Overview
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.
Coronavirus
Coronavirus
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The virus that causes COVID-19 spreads most commonly through the air in tiny droplets of fluid between people in close contact. Many people with COVID-19 have no symptoms or mild illness. But for older adults and people with certain medical conditions, COVID-19 can lead to the need for care in the hospital or death.
Staying up to date on your COVID-19 vaccine helps prevent serious illness, the need for hospital care due to COVID-19 and death from COVID-19. Other ways that may help prevent the spread of this coronavirus includes good indoor air flow, physical distancing, wearing a mask in the right setting and good hygiene.
Medicine can limit the seriousness of the viral infection. Most people recover without long-term effects, but some people have symptoms that continue for months.
Symptoms
Typical COVID-19 symptoms often show up 2 to 14 days after contact with the virus.
Symptoms can include:
Dry cough.
Shortness of breath.
Loss of taste or smell.
Extreme tiredness, called fatigue.
Digestive symptoms such as upset stomach, vomiting or loose stools, called diarrhea.
Pain, such as headaches and body or muscle aches.
Fever or chills.
Cold-like symptoms such as congestion, runny nose or sore throat.
People may only have a few symptoms or none. People who have no symptoms but test positive for COVID-19 are called asymptomatic. For example, many children who test positive don't have symptoms of COVID-19 illness. People who go on to have symptoms are considered presymptomatic. Both groups can still spread COVID-19 to others.
Some people may have symptoms that get worse about 7 to 14 days after symptoms start.
Most people with COVID-19 have mild to moderate symptoms. But COVID-19 can cause serious medical complications and lead to death. Older adults or people who already have medical conditions are at greater risk of serious illness.
COVID-19 may be a mild, moderate, severe or critical illness.
In broad terms, mild COVID-19 doesn't affect the ability of the lungs to get oxygen to the body.
In moderate COVID-19 illness, the lungs also work properly but there are signs that the infection is deep in the lungs.
Severe COVID-19 means that the lungs don't work correctly, and the person needs oxygen and other medical help in the hospital.
Critical COVID-19 illness means the lung and breathing system, called the respiratory system, has failed and there is damage throughout the body.
Rarely, people who catch the coronavirus can develop a group of symptoms linked to inflamed organs or tissues. The illness is called multisystem inflammatory syndrome. When children have this illness, it is called multisystem inflammatory syndrome in children, shortened to MIS-C. In adults, the name is MIS-A.
When to see a doctor
Contact a healthcare professional if you test positive for COVID-19. If you have symptoms and need to test for COVID-19, or you've been exposed to someone with COVID-19, a healthcare professional can help.
People who are at high risk of serious illness may get medicine to block the spread of the COVID-19 virus in the body. Or your healthcare team may plan regular checks to monitor your health.
Get emergency help right away for any of these symptoms:
Can't catch your breath or have problems breathing.
Skin, lips or nail beds that are pale, gray or blue.
New confusion.
Trouble staying awake or waking up.
Chest pain or pressure that is constant.
This list doesn't include every emergency symptom. If you or a person you're taking care of has symptoms that worry you, get help. Let the healthcare team know about a positive test for COVID-19 or symptoms of the illness.