cloudy.png
Friday September 25th, 2020 4:37PM

What are the different types of coronavirus tests?

By The Associated Press

What are the different types of coronavirus tests?

There are three broad categories of coronavirus tests in the U.S. Two diagnose whether you have an active infection, and a third indicates if you previously had the virus.

Here’s how they work:

GENETIC TESTS

Most tests look for bits of the virus’ genetic material, and require a nasal swab that is taken by a health professional and then sent to a lab. This is considered the most accurate way to diagnose an infection, but it's not perfect: The swab has to get a good enough sample so any virus can be detected.

These tests usually take hours to process at the lab so you likely won't get results back for at least a day, though a handful of rapid tests take about 15 minutes on site. Other genetic tests use saliva, instead of a swab.

ANTIGEN TESTS

A newer type of test looks for proteins found on the surface of the coronavirus, rather than the virus itself. These antigen tests are just hitting the market, and experts hope they'll help expand testing and speed up results.

Antigen tests aren't as accurate as genetic tests, but are cheaper, faster and require less specialized laboratory equipment. They still require a nasal swab by a health professional.

A recently approved test from Abbott Laboratories takes 15 minutes and can be performed at schools, offices and other locations.

ANTIBODY TESTS

Antibody tests look for proteins that the body makes to fight off infections in a patient's blood sample. Antibodies are a sign that a person previously had COVID-19.

Scientists don’t yet know if antibodies protect people from another infection, or how long that protection might last. So antibody tests are mostly useful for researchers measuring what portion of the population was infected.

___

The AP is answering your questions about the coronavirus in this series. Submit them at: FactCheck@AP.org.

Can I get the coronavirus twice?

Has the coronavirus mutated in any significant way?

Can I use a face shield instead of a mask?

  • Associated Categories: U.S. News, Associated Press (AP), AP National News, AP Online National News, Top U.S. News short headlines, Top General short headlines, AP Health
© Copyright 2020 AccessWDUN.com
All rights reserved. This material may not be published, broadcast, rewritten, or redistributed without permission.
What are the different types of coronavirus tests?
Tests for the coronavirus in the U.S. fall into three broad categories
3:04AM ( 11 minutes ago )
The Latest: Sally's rains pummel western Florida Panhandle
The Florida Panhandle is being pummeled by heavy rains from Hurricane Sally’s outer bands
1:46AM ( 1 hour ago )
Choking air from Western fires just won't ease up
People across the West struggled under acrid-yellowish green smog from raging wildfires that seeped into homes and businesses, sneaked into cars through air conditioning vents and caused the temporary closure of iconic locations such as Powell’s Books and the Oregon Zoo
1:03AM ( 2 hours ago )
U.S. News
Pandemic forces journalists to rethink campaign coverage
The pandemic has forced news organizations to rethink how they cover the presidential campaign — and some journalists say that's not necessarily a bad thing
3:08AM ( 7 minutes ago )
LEADING OFF: Blue Jays-Yanks, Padres go for 9th straight
Second place in the AL East is up for grabs when Toronto opens a critical three-game series at Yankee Stadium
2:15AM ( 1 hour ago )
Gostkowski finally delivers in Titans' 16-14 win at Denver
New kicker Stephen Gostkowski avoided a disastrous debut with the Tennessee Titans when he kicked a 25-yard field goal with 17 seconds left for a 16-14 win over the Denver Broncos
1:47AM ( 1 hour ago )
Associated Press (AP)
Trump defies virus rules as 'peaceful protest' rallies grow
President Donald Trump is running as the “law and order” candidate, but that hasn’t stopped him and his reelection campaign from defying state emergency orders and flouting his administration’s coronavirus guidelines as he holds rallies in battleground states
12:39AM ( 2 hours ago )
'Work like the devil': Biden visiting Florida to woo Latinos
Joe Biden is making his first trip to Florida as the Democratic presidential nominee, while his campaign is acknowledging concerns about his appeal with Latinos
12:34AM ( 2 hours ago )
South Dakota agency: AG reported hitting deer, but hit man
South Dakota Attorney General Jason Ravnsborg says he discovered he had struck and killed a man walking along a rural stretch of highway only after returning to the scene the next day and discovering the body
11:48PM ( 3 hours ago )
AP National News
Biden assembles legal team ahead of divisive 2020 election
Democratic presidential nominee Joe Biden is assembling a team of top lawyers in anticipation of court challenges to the election process that could ultimately determine who wins the race for the White House
8:06PM ( 7 hours ago )
Trump spurns science on climate: 'Don't think science knows'
With the smell of California wildfires in the air, President Donald Trump on Monday ignored the scientific consensus that climate change is playing a central role in West Coast infernos
8:02PM ( 7 hours ago )
Hurricane Sally threatens Gulf Coast with a slow drenching
A rapidly intensifying Hurricane Sally is closing in on the northern Gulf Coast
7:10PM ( 8 hours ago )
AP Online National News
Easing fires not as simple as climate change vs. forest work
Deadly West Coast wildfires are dividing President Donald Trump and the states’ Democratic leaders over how to prevent blazes from becoming more frequent and destructive
11:21PM ( 3 hours ago )
LA Sheriff to politicians: Emphasize trust in justice system
The Los Angeles County sheriff criticized elected officials, sports figures and civic leaders for “fanning the flames of hatred” as America grapples with racism and police brutality
10:14PM ( 5 hours ago )
California governor gently confronts Trump on climate
California Gov. Gavin Newsom was respectful with President Donald Trump about climate change during his visit to the state
10:05PM ( 5 hours ago )
Top U.S. News short headlines
The Latest: Sally's rains pummel western Florida Panhandle
The Florida Panhandle is being pummeled by heavy rains from Hurricane Sally’s outer bands
1:46AM ( 1 hour ago )
Choking air from Western fires just won't ease up
People across the West struggled under acrid-yellowish green smog from raging wildfires that seeped into homes and businesses, sneaked into cars through air conditioning vents and caused the temporary closure of iconic locations such as Powell’s Books and the Oregon Zoo
1:03AM ( 2 hours ago )
Sally's threat: 'Potentially historic' floods, fierce winds
Rain bands from slow-moving Hurricane Sally are moving over the Florida Panhandle as forecasters try to determine exactly where the plodding but powerful storm will come ashore
12:12AM ( 3 hours ago )
South Dakota AG discovered man's body day after crash
South Dakota Attorney General Jason Ravnsborg says he discovered he had struck and killed a man walking along a rural stretch of highway only after returning to the scene the next day and discovering the body
12:08AM ( 3 hours ago )
South Dakota agency: AG reported hitting deer, but hit man
South Dakota Attorney General Jason Ravnsborg says he discovered he had struck and killed a man walking along a rural stretch of highway only after returning to the scene the next day and discovering the body
11:48PM ( 3 hours ago )