1xbet
1xbet-1xir.com
1xbet-1xir.com
1xbet-1xir.com
1xbet-1xir.com
1xbet-1xir.com
1xbet-1xir.com
1xbet-1xir.com
1xbet-1xir.com
1xbet-1xir.com
1xbet-1xir.com
1xbet-1xir.com
1xbet-1xir.com
1xbet-1xir.com
1xbet-1xir.com
1xbet-1xir.com
betforward
betforward.com.co
betforward.com.co
betforward.com.co
betforward.com.co
betforward.com.co
betforward.com.co
betforward.com.co
betforward.com.co
betforward.com.co
betforward.com.co
betforward.com.co
betforward.com.co
betforward.com.co
betforward.com.co
betforward.com.co
betforward.com.co
yasbetir1.xyz
winbet-bet.com
1kickbet1.com
1xbet-ir1.xyz
hattrickbet1.com
4shart.com
manotobet.net
hazaratir.com
takbetir2.xyz
1betcart.com
betforwardperir.xyz
betforward-shart.com
betforward.com.co
betforward.help
betfa.cam
2betboro.com
1xbete.org
1xbett.bet
romabet.cam
megapari.cam
mahbet.cam
1xbetgiris.cam
betwiner.org
betwiner.org
1xbetgiris.cam
1xbet
1xbet
alvinbet.site
alvinbet.bet
alvinbet.help
alvinbet.site
alvinbet.bet
alvinbet.help
1xbet giris
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
1xbetgiris.cam
pinbahis.com.co
pinbahis.com.co
pinbahis.com.co
pinbahis.com.co
pinbahis.com.co
pinbahis.com.co
pinbahis.com.co
pinbahis.com.co
pinbahis.com.co
pinbahis.com.co
pinbahis.com.co
pinbahis.com.co
pinbahis.com.co
pinbahis.com.co
pinbahis.com.co
betwinner
betwiner.org
betwiner.org
betwiner.org
betwiner.org
betwiner.org
betwiner.org
betwiner.org
betwiner.org
betwiner.org
betwiner.org
betwiner.org
betwiner.org
betwiner.org
betwiner.org
betwiner.org
betwiner.org
1xbet
1xbete.org
1xbete.org
1xbete.org
1xbete.org
1xbete.org
1xbete.org
1xbete.org
1xbete.org
1xbete.org
1xbete.org
1xbete.org
1xbete.org
1xbete.org
1xbete.org
1xbete.org
betforward
betforward
betforward
betforward
betforward
betforward
betforward
betforward
yasbet
yasbet
yasbet
yasbet
yasbet
yasbet
yasbet
yasbet
1xbet
1xbet
1xbet
1xbet
1xbet
1xbet
1xbet
1xbet
1xbet
betforward
betforward
betforward
betforward
betforward
betforward
betforward
betforward
yasbet
yasbet
yasbet
yasbet
yasbet
yasbet
yasbet
yasbet
1xbet
1xbet
1xbet
1xbet
1xbet
1xbet
1xbet
1xbet
1xbet
1betcart.com
1betcart.com
1betcart.com
1betcart.com
1betcart.com
1betcart.com
1betcart.com
1betcart.com
1betcart.com
1betcart.com
1betcart.com
1betcart.com
1betcart.com
1betcart.com
1betcart.com
1betcart.com
betcart
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی
بهترین سایت شرط بندی ایرانی

Global Statistics

All countries
695,781,740
Confirmed
Updated on September 26, 2023 9:04 pm
All countries
627,110,498
Recovered
Updated on September 26, 2023 9:04 pm
All countries
6,919,573
Deaths
Updated on September 26, 2023 9:04 pm

Global Statistics

All countries
695,781,740
Confirmed
Updated on September 26, 2023 9:04 pm
All countries
627,110,498
Recovered
Updated on September 26, 2023 9:04 pm
All countries
6,919,573
Deaths
Updated on September 26, 2023 9:04 pm

COVID-19 tests: There’s an insurmountable backlog of virus tests. A rapid test could help.

City of Cape Town urges people to leave Kataza the baboon alone

Kataza the baboon. Facebook / Baboon Matters The City of Cape Town has asked the public not to feed a baboon that has relocated to Tokai. The baboon, known as Kataza or SK11, is slowly being integrated into the Tokai troop. Video footage, however, shows humans feeding Kataza. The City of Cape Town has requested that Kataza…

Rassie: There are various benefits for SA rugby to go north

As SA Rugby moves to determine which franchises will go to Europe in future, Rassie Erasmus has noted several potential benefits for the local game should that route be followed.The national director of rugby believes the high world rankings of Wales, Ireland and Scotland mean PRO Rugby is competitive and that fans will eventually identify…

A Once-in-a-Century Climate ‘Anomaly’ Might Have Made World War I Even Deadlier

(John Finney Photography/Moment/Getty Images) An abnormally bad season of weather may have had a significant impact on the death toll from both World War I and the 1918 Spanish flu pandemic, according to new research, with many more lives being lost due to torrential rain and plummeting temperatures. Through a detailed analysis of an ice…

PICS | Truck driver killed in Pinetown after truck ploughs into several cars

A vehicle that was hit in the accident. A truck driver was killed in a horrific sequence of events following an initial crash in Pinetown. While trying to move the truck after the accident, it appeared to lose control. He died after falling out of the truck which ploughed into several cars and a wall.A truck driver…

42 people in court for R56m police vehicle branding scam

Forty-two people have been implicated in a police car branding scam. Forty-two people have been arrested for their alleged involvement in a police vehicle branding scam. They face a range of charges including corruption, fraud, money laundering, theft and perjury.Of these, 22 are serving police members.Forty-two people are set to appear in the Pretoria Magistrate's Court on…

As the U.S. deals with massive delays in COVID-19 testing, doctors and scientists say another type of diagnostic test could alleviate the stress on labs. Rapid, or point-of-care, tests deliver results in just minutes, while lab-based tools can take days.

“Every day they wait is another day they need to quarantine, or if they’re not, it’s another day they could be infecting other people,” Dr. Keith Jerome, who directs the molecular virology lab at the University of Washington medical school, said in an interview. “If you’re getting results within 20 minutes, you can start taking the appropriate actions right away.”

The National Institutes of Health announced Wednesday what it called an “unprecedented effort” to ramp up testing technology. Funded by $1.5 billion in federal stimulus money, the program will focus on creating rapid tests and distributing them more widely.

It’s also being called for by lawmakers and top federal health officials. President Donald Trump promised more rapid testing during his briefing Tuesday. And Dr. Brett Giroir, who is overseeing the nation’s COVID-19 testing, said this month that he expected 5 million additional “point-of-care” tests in July, with a goal of 20 million or more by September.

The tests produce such quick results because samples aren’t sent off to labs. Instead, they’re inserted directly into a machine housed at a doctor’s office or a hospital. The machine does the entire analysis, so instead of hours, it takes just minutes to get results — similar to rapid flu or strep tests used by most doctors.

Six point-of-care tests are authorized by the Food and Drug Administration, including two antigen tests, which look for certain proteins in the virus rather than genetic material.

As promising as the rapid tests seem to be, a significant problem prevents more doctors and clinicians from using them. Most aren’t as accurate as lab-based tests, and, in some cases, they can have shockingly high rates of false negatives.

Full coverage of the coronavirus outbreak

Let our news meet your inbox. The news and stories that matters, delivered weekday mornings.

Joseph Petrosino, director of molecular virology and microbiology at Baylor College of Medicine, compares it to eating at a fast-food joint.

“If you go to a gourmet restaurant, you don’t expect your meal to be ready in five minutes,” he said. “But if you’re on the go and you eat fast food, the quality of food is usually a sacrifice, compared to the gourmet restaurant. That’s the same thing in the testing world.”

One of the more popular rapid tests, Abbott Labs’ ID NOW point-of-care test, which promises results in as little as five minutes and was once touted by the White House, came under fire in recent weeks after a small study found that it returned false negatives for nearly 50 percent of certain samples compared to a rival test. While other studies found more accurate results, it was enough for the FDA to issue an alert in May. The agency has received 147 adverse event reports about the test.

“The reality is that trying to do this really fast — the combination of fast and sensitive — turns out to be really a challenge,” said Dr. Christopher Polage, director of the clinical microbiology laboratory at Duke University Health System.

Polage said COVID-19 testing is a lengthy process. In the lab, scientists use special reagents that amplify or copy a sample’s genetic material to test for the virus. The process takes several hours. When you try to short-cut it for a rapid test, you can end up trading off the test’s sensitivity.

“No patient is ever going to wait at a clinic for eight hours,” Polage said. “So it’s really difficult and, in some cases, impossible to get an equivalent result in a fraction of the time.”

Jerome said, “You have to really keep in mind that there is a trade-off that you’ve made for that speed, and the trade-off is they’re not as sensitive, which means they’re going to miss some people who actually have COVID and tell them COVID isn’t there.”

A point-of-care test made by Cepheid Inc. of Sunnyvale, California, which gives results in about an hour, has been shown to be nearly as accurate as lab-based tests. But scientists say that the machine is expensive and that, as with some lab-based tests, some of the reagents it uses are in short supply.

“If you can wait an hour, you can get really good results,” Jerome said. “The issue with those has been just shortages of reagents, and the machine itself is just not available enough that everybody can have one.” He said UW Medicine, the health care system affiliated with the University of Washington, can use it only in the emergency room, where it needs to quickly test trauma patients so doctors and nurses know what kind of protective gear they need to wear.

But some doctors say that instead of focusing on rapid tests, which are notoriously difficult to perfect — both rapid strep and flu tests also have issues with accuracy — the U.S. should focus on fixing capacity issues with lab-based tests, which are being slowed in part because of supply shortages.

“We have the equipment, but we can’t get the reagents,” Jerome said. “We did a little over 7,000 tests yesterday in my laboratory. But we could have done 7,000 more if we had full allotments of reagents.”

Download the NBC News app for full coverage and alerts about the coronavirus outbreak

The delays in testing have a real impact for people like Frank Borsa, 55, who anxiously waited for days to find out whether he was infected after he returned to Brooklyn, New York, from Miami.

“It’s really frustrating,” Borsa said while he was still waiting for the results. “I’ve called repeatedly. What you get is ‘it’s taking a little bit longer.’ It’s very difficult, because you don’t know how to go forward.”

He finally got his results 12 days after he took the test at a New York City urgent care center. He was negative. But he said he now understands what the hubbub around testing is all about.

“Even though there might be hundreds of thousands of tests performed per day, if people are not getting their results, this is never going to end,” he said. “The communication is there’s tons of tests. But if there’s no results, what good is it?”

Read More

LEAVE A REPLY

Please enter your comment!
Please enter your name here

Hot Topics

City of Cape Town urges people to leave Kataza the baboon alone

Kataza the baboon. Facebook / Baboon Matters The City of Cape Town has asked the public not to feed a baboon that has relocated to Tokai. The baboon, known as Kataza or SK11, is slowly being integrated into the Tokai troop. Video footage, however, shows humans feeding Kataza. The City of Cape Town has requested that Kataza…

Rassie: There are various benefits for SA rugby to go north

As SA Rugby moves to determine which franchises will go to Europe in future, Rassie Erasmus has noted several potential benefits for the local game should that route be followed.The national director of rugby believes the high world rankings of Wales, Ireland and Scotland mean PRO Rugby is competitive and that fans will eventually identify…

A Once-in-a-Century Climate ‘Anomaly’ Might Have Made World War I Even Deadlier

(John Finney Photography/Moment/Getty Images) An abnormally bad season of weather may have had a significant impact on the death toll from both World War I and the 1918 Spanish flu pandemic, according to new research, with many more lives being lost due to torrential rain and plummeting temperatures. Through a detailed analysis of an ice…

Related Articles

City of Cape Town urges people to leave Kataza the baboon alone

Kataza the baboon. Facebook / Baboon Matters The City of Cape Town has asked the public not to feed a baboon that has relocated to Tokai. The baboon, known as Kataza or SK11, is slowly being integrated into the Tokai troop. Video footage, however, shows humans feeding Kataza. The City of Cape Town has requested that Kataza…

Rassie: There are various benefits for SA rugby to go north

As SA Rugby moves to determine which franchises will go to Europe in future, Rassie Erasmus has noted several potential benefits for the local game should that route be followed.The national director of rugby believes the high world rankings of Wales, Ireland and Scotland mean PRO Rugby is competitive and that fans will eventually identify…

A Once-in-a-Century Climate ‘Anomaly’ Might Have Made World War I Even Deadlier

(John Finney Photography/Moment/Getty Images) An abnormally bad season of weather may have had a significant impact on the death toll from both World War I and the 1918 Spanish flu pandemic, according to new research, with many more lives being lost due to torrential rain and plummeting temperatures. Through a detailed analysis of an ice…