Different types of tests are available now, and some are under construction in the future. : the nasal swab,a saliva test and a promising method that uses instead of hours.
Because test kits are currently so limited, testing for COVID-19 requires a doctor's referral in many places and. As labs ramp up their production of Food and Drug Administration-approved kits for coronavirus testing, community-wide testing will begin.
We'll tell you what you need to know about the different types of coronavirus testing, based on guidelines from the FDA and centers for disease control and prevention. Access to tests will vary by region, with some test sites. . Here is and yet.
We will update this story regularly as test kits become more widely available in the coming months. For now, here's a snapshot of the types of tests available.
Nasal Swab Test
What It Is: Currently, this is the most common test for COVID-19 and is recommended by the CDC. In the nasal (or nasopharyngeal) smear test, a doctor will insert a long, Q-tip-like smear into one or both nostrils to collect a sample. The process has been described as somewhat uncomfortable but not painful. Related is the throat or oropharyngeal test stick, which takes a sample from the back of the throat.
How It Is Now Used: The test is primarily used to detect the coronavirus in high-risk situations, such as healthcare professionals or based on a person's symptoms, age, and health or recent travel history. Once a sample has been collected. But it can be days or weeks to receive the results because it takes time to bring the sample to the laboratory, perform the test, and then report the results, and laboratories in some regions are listed .
A faster method for nasal smears with a tool called. Another can give results in 5 minutes, Abbott says.
Accuracy: The tests are just being rolled out, and the FDA has not released any numbers on how accurate the test is.
What it is: Coronavirus tests fall into two broad categories: those that check for the virus to see if you are currently infected, and those that look for antibodies to see if you have been previously infected and built an immune response. Within each of these two broad categories there are multiple types of tests that medical laboratories are working on and being rolled out.
A– also called a serology test – can tell if you have previously been infected with COVID-19 and have built up an immune response through antibodies. The test requires a blood sample.
How It Is Now Used: Until recently, antibody tests were not widely available in the US. Once that is the case, health officials hope to use the test results to determine who is already infected and can return work, for example. On a larger scale, test results across the community can reveal how close a region is to achieving herd immunity from previous exposure. Since a coronavirusis believed to be more than a year away, antibody testing is considered by many to be the path to safe reopening of countries.
Accuracy: As with the swab tests, the FDA and testing laboratories are not yet talking about the accuracy of antibody tests.
What It Is: With the FDA's newly approved emergency use, the saliva test, developed in conjunction with Rutgers University, would allow health professionals to collect samples from patients in a bottle spit like when providing a sample for– instead of undergoing a nasal swab.
How It's Used Now: While the test currently requires a medical professional to take the sample, Rutgers says the test is designed to get people to sample at home by spitting into a bottle , once the process has been approved by the FDA for self-collection.
Accuracy: There is not enough information yet to determine accuracy, but researchers believe that saliva tests can be as accurate as smears.
What it is: The FDA has just approved the first home test kit, which should be available in the coming weeks. In a take-home test, you will receive a kit with the approval of the doctor you use to take a sample with a cotton swab and then send it to a lab for testing.
How It Is Used: LabCorp's first house kit uses a cotton swab to collect a nasal sample.
Accuracy:said he expects the results of the first home test kit to be as accurate as those collected on
Testing will play a key role in helping authoritiesand here are to prevent the virus from spreading further when society opens up again. If you still have limitations, if you need to go out in public, .