Coronovirus rapid test can be used White House Kovid-19 cluster, experts say



At least eight people who attended the White House’s recent Supreme Court nomination ceremony for Amy Connie Barrett have tested positive for coronovirus, and public health experts say they are being diagnosed with more participants in the coming days are supposed to.

The White House says it has relied on rapid testing to help prevent the spread of Kovid-19 between officials and guests. Officers do not wear masks or socially spaced because they are tested daily. The President is also tested every day for coronovirus, as anyone who comes in close contact with him.

The administration swiftly tested Abbott Laboratories’ ID Now, which depends on the September 26 incident for Judge Barrett. After the guests tested negative, they were taken to the Rose Garden, where some people wore masks. The White House did not comment on whether anyone investigated the incident positively.

Public-health experts say the White House is not using the test appropriately, and is not meant to use such tests as one-time screeners. Regardless of the type or brand of testing, any strategy that relies solely on testing is insufficient to protect the public against viruses, epidemiologists, and researchers.

President Trump’s program included a Rose Garden incident, a presidential debate, and a tour of three states the week before Kovid-19’s diagnosis. Photo: Getty Image

Ashish Jha, dean of Brown University’s School of Public Health, said, “All of this is fundamentally misunderstood that they were using it.

All tests, including those processed in a laboratory, can produce false negatives, he and other experts say. Some studies have shown that the Abbott Now ID test, which can produce results in minutes, has a sensitivity of around 91% – that is, 9% of tests can produce false negatives.

Dr. Jha said, “A metal detector that misses 10% of the weapons – you’d never say that our only layer of protection is for the president.”

Such rapid tests trade some accuracy for speed, and require a person to be administered over a period of several days or weeks to be useful for screening. The idea is that if the test misses the virus one day for any reason, it will be more likely to catch it on another.

Abbott’s spokesman said in a statement, “No test detects the virus as soon as the person is infected.” “Today we have laboratory-based and rapid tests that help reduce the risk in the society and slow down the spread of the virus. The goal should be to test frequently – or if it is not possible, to test whether you have been exposed or have symptoms – and find out if you have them. If so, you will know to isolate to stop the spread. ”

A multivariate approach is important, epidemiologists and researchers say. This includes socializing, masks and crowd avoidance.

Former New Jersey government Chris Christie and other guests at Judge Barrett’s ceremony. Mr. Christie has tested positive for coronavirus.


Photo:

Rod Lamich / CNP / Zuma Press

The virus is spread by large and small droplets when infected people talk, laugh, shout, and breathe. People near an infected person can breathe in those particles and become infected. The closer an infected person is, the more likely they are to be exposed to enough viral particles to become infected.

The White House ceremony was seen in the embrace of some guests, situated very close by without kisses and masks. The outdoor ceremony, during which people sat in close proximity to each other and sometimes chanted loudly lasted for about 20 minutes.

The CDC typically defines long contact as 15 minutes or less than 6 feet of unprotected conversation with another person. This may take less time with sneezing or other intimate contact on the face.

As of Sunday, the list of attendees with positive coronavirus tests included President Donald Trump, first lady Melania Trump, former White House adviser Kellyanne Conway, Sen. Mike Lee, (R, Utah), Sen. Thoms Tillis, (R.) included. North Carolina), John Jenkins, president of the University of Notre Dame, and former New Jersey government. Chris Christie. The eighth person, a journalist, has not been named.

Judge Barrett tested negative for coronavirus on Friday.

Mrs. Trump and Ms. Conway have stated that they were going to quarantine. Mr. Trump is hospitalized at Walter Reed National Military Medical Center.

White House spokesman Jude Deere said, “President Trump’s top priority is the health and safety of the American people, which is why we have included current CDC guidance and best practices to limit Kovid-19 to the greatest extent . ”

Epidemiologists said the Trump administration’s approach led to a failure after the nomination program and outbreak of cases.

“The White House is not the best of infection prevention measures as a holistic approach,” said Saskia Popescu, an infectious disease epidemiologist at George Mason University. “This particular incident is a good example of why that approach is not successful.”

Infectious-pathologists say it’s too early to call the September 26 gathering, which includes the Rose Garden ceremony and a small gathering with Judge Barrett and his family, which is a superspreader event, but it was all material for one : Prolonged, close contact without a mask between a large group of people. An estimated 150 to 200 people were in attendance.

Researchers said it could be weeks before the event’s full impact.

It is unclear whether the guests caught it there, or if they were already infected before being present and the screening attendees did not catch some cases.

Understanding how the new coronovirus clears the body as America begins to reopen. Daniela Hernández of the WSJ explains how the body fights infection and why feeling better does not equal being virus free. Photo Illustration: Laura Kammran

The incidence of superspreaders is worrying, as they seed the additional round of infection, he and others said. For example, someone who got infected on Saturday can go back home and infect others in his community before they know it.

Experts say that such asymptomatic transmission has made epidemics so difficult.

The risk of transmission is greater indoors as the natural mixing of air is not efficient and hence there is less dilution of potentially infectious particles. A building’s ventilation system cannot mix air well or evenly throughout the room, creating pockets of air where viral particles can build up, Rachel Jones, a health expert at the University of Utah, said it Studies how infectious diseases spread in indoor environments.

The longer people are inside together, the more they are exposed to the virus. The White House declined to comment on how long the indoor run of Saturday’s events lasted.

The ceremony itself was held outside, which minimizes the risk of transmission, experts say. When people are outside, there is more room for virus-laden particles to spread the virus, reducing the risk of catching the virus. But being outside is not entirely protective, they say.

“I know we’re at a loss in doing things externally, but it wasn’t for hundreds of people for an extended period of time. Packing people together without masks defeats the purpose,” George Said Dr. Popescu of Mason University.

A Notre Dame official said that when Notre Dame President Rev. Jenkins arrived at the White House on September 26, he was taken to a room where he was tested for a nasal swab. He was then taken to another room with some other people waiting for the results, where everyone was wearing a mask. After his test returned negative, Rev. Jenkins was taken to the Rose Garden and told that he no longer had to wear a mask.

On Friday, the school said it tested positive for the virus.

He said that not wearing a mask in the incident was an error in judgment and he regretted it. “My symptoms are mild and I will continue to work from home,” he said through a school spokesperson. “Positive testing is a good reminder for me and probably for all of us how vigilant we need to be.”

Write Sara Toy at [email protected] and Daniela Hernández at daniela.hernandez.ws.com

Copyright © 2020 Dow Jones & Company, Inc. All rights reserved. 87990cbe856818d5eddac44c7b1cdeb8

.

Leave a Reply

Your email address will not be published.