What You Need to Know About COVID-19 Testing

COVID-19 testing is an important tool for managing the spread of the virus. By understanding the different types of tests available and what they can tell you, you can make informed decisions about your health and the health of your community.

Types of COVID-19 Tests

There are two main types of COVID-19 tests:

* Molecular tests (also known as PCR tests) detect the presence of the virus's genetic material. These tests are considered the most accurate and are typically used to diagnose active infections.

* Antigen tests detect the presence of viral proteins. These tests are less sensitive than molecular tests and can sometimes have false negative results, but they are faster and easier to administer, and can provide results in minutes.

Sensitivity and Specificity

The sensitivity of a test refers to its ability to correctly identify people who have the disease, while the specificity of a test refers to its ability to correctly identify people who do not have the disease.

* Sensitivity: A highly sensitive test is less likely to produce a false negative result (i.e., saying you don't have the disease when you actually do).

* Specificity: A highly specific test is less likely to produce a false positive result (i.e., saying you have the disease when you actually don't).

When to Get Tested

COVID-19 testing is recommended for anyone who has symptoms of the virus, such as:

* Fever

* Cough

* Shortness of breath or difficulty breathing

* Fatigue

* Muscle or body aches

* Headache

* New loss of taste or smell

* Sore throat

* Congestion or runny nose

* Nausea or vomiting

* Diarrhea

Testing is also recommended for people who have been in close contact with someone who has COVID-19, even if they don't have symptoms.

Where to Get Tested

COVID-19 testing is available at a variety of locations, including:

* Hospitals

* Clinics

* Urgent care centers

* Pharmacies

* Drive-thru testing sites

* Home test kits

You can find a list of testing sites near you by visiting the CDC's website.

Results

The results of your COVID-19 test will usually be available within a few days. If you test positive, your doctor will discuss with you the next steps for your care.

Preventing COVID-19

The best way to prevent COVID-19 is to:

* Get vaccinated and boosted as soon as you are eligible.

* Wear a mask in indoor public settings, especially if you are not vaccinated.

* Wash your hands frequently with soap and water.

* Stay home if you are feeling sick.