Common public screening methods unreliable; student athletes may need heart test after COVID-19

  • In US
  • 2020-09-16 20:10:17Z
  • By Reuters
The 77th Venice Film Festival
The 77th Venice Film Festival  

By Nancy Lapid

(Reuters) - The following is a roundup of some of the latest scientific studies on the novel coronavirus and efforts to find treatments and vaccines for COVID-19, the illness caused by the virus.

COVID-19 screening in public venues is unreliable

COVID-19 screening tests used at airports, schools, and other public places are not particularly effective, a large analysis shows. Researchers synthesized the evidence from 22 studies of various screening methods, including taking people's temperature, asking about symptoms, travel history and exposure to infected or possibly infected people, and combinations of those and other approaches.

All of these, as well as repeated screening, had low "sensitivity," meaning poor ability to identify those with COVID-19, and low "specificity," that is, they could not reliably identify those without COVID-19. The specificity measure tended to be more accurate in places with low infection rates.

With these popular screening methods, "a high proportion of infected individuals may be missed and go on to infect others, and some healthy individuals may be falsely identified as positive, requiring confirmatory testing and potentially leading to the unnecessary isolation of these individuals," the researchers wrote on Tuesday in a review for The Cochrane Library.

"Given the poor sensitivity of existing approaches, our findings point to the need for greater emphasis on other ways that may prevent transmission such as face coverings, physical distancing, quarantine, and adequate personal protective equipment for frontline workers." (

Cardiac MRI may be in order for athletes after COVID-19

When college athletes recover from COVID-19 and are ready to return to sports, it might be wise to first make sure the new coronavirus has not left them with myocarditis, an inflammation of the heart that has turned up in some patients even after only mild or asymptomatic illness.

At Ohio State University, doctors performed cardiovascular magnetic resonance imaging (MRI) studies on 26 student athletes, women and men, who had recovered from COVID-19. None had been hospitalized, and 12 reported having only mild symptoms.

Their electrocardiograms looked normal, and ultrasound examinations showed no heart abnormalities. But the MRIs detected myocarditis in four of the athletes - two of whom had no symptoms.

And 12 athletes had heart tissue scarring, although they had not had any of the typical signs of a heart attack. In a paper published on Friday in JAMA Cardiology, the doctors conclude that while larger studies are needed, MRI may be a good way to evaluate athletes after COVID-19 recovery and to guide safe competitive sports participation. (

Previous COVID-19 not linked with childbirth complications

For otherwise healthy women giving birth, previous exposure to the novel coronavirus appears not to impact labor and delivery, a new study suggests.

From early April to early July, researchers at Copenhagen University Hospital tracked 1,361 women in labor, 1,236 of their partners and 1,342 of their newborns. None of the women were currently sick with COVID-19, but 2.9% of them and 3.8% of their partners had antibodies to the coronavirus, indicating previous infections.

Only about half of those with antibodies reported having had any symptoms.

"No associations between previous COVID-19 disease and obstetric- or neonatal complications were found," the study authors reported on Tuesday in a paper posted on medRxiv in advance of peer review. They did find that having a partner with COVID-19 antibodies was a significant predictor that the woman who gave birth would also have antibodies, reinforcing how contagious the disease is with close contact.

The mothers in the study were generally young nonsmokers with a healthy weight. Those who did have COVID-19 antibodies had not had serious cases that required hospitalization. "Our results and conclusion may therefore not directly be applied to other populations" such as new mothers who are obese, frequent smokers or those who had severe COVID-19, they noted. (

Open in an external browser for a Reuters graphic on vaccines and treatments in development.

(Reporting by Nancy Lapid; Editing by Bill Berkrot)


More Related News

The Latest: India
The Latest: India's daily cases continue downward trend

India has registered 88,600 new confirmed coronavirus cases in the past 24 hours in a declining trend with recoveries exceeding daily infections. The Health Ministry on Sunday also reported additional 1,124 deaths for a total of 94,503.

Coronavirus updates: 9% of American adults exposed to COVID-19; world deaths could double before a vaccine is widely available, WHO warns
Coronavirus updates: 9% of American adults exposed to COVID-19; world deaths could double before a vaccine is widely available, WHO warns

Texas A&M;'s Midnight Yell was a little "eerie" with no fans. Florida is easing more restrictions. California is seeing more cases. Latest COVID news.

An airport in Finland is using dogs to detect the coronavirus, and researchers say they are
An airport in Finland is using dogs to detect the coronavirus, and researchers say they are 'close to 100%' accuracy

Finland's Helsinki-Vantaa airport is running a trial to let dogs test travelers for the coronavirus, saying it could be better than laboratory tests.

2 former leaders of Holyoke Soldiers
2 former leaders of Holyoke Soldiers' Home charged in COVID-19 deaths
  • US
  • 2020-09-25 20:32:00Z

Two former leaders of the Holyoke Soldiers' Home in Massachusetts have been indicted in connection with the COVID-19 deaths of nearly a dozen veterans, Attorney General Maura Healey announced Friday. Former Superintendent Bennett Walsh and former Medical Director Dr. David Clinton each have been charged with criminal neglect following an investigation into the facility, where at least 76 residents died of COVID-19. Each defendant is facing five counts of charges of caretaker who wantonly or recklessly commits or permits bodily injury to an elder or disabled person, and five counts of caretaker who wantonly or recklessly commits or permits abuse, neglect or mistreatment to an elder or...

Positive results for J&J vaccine; child racial disparities seen
Positive results for J&J vaccine; child racial disparities seen
  • US
  • 2020-09-25 19:49:03Z

A single dose of Johnson & Johnson's experimental COVID-19 vaccine produced a strong immune response against the novel coronavirus, according to interim results from an early-to-mid stage clinical trial released on Friday. The study, backed by the U.S. government, involves about 1,000 adults.

Leave a Comment

Your email address will not be published. Required fields are marked with *

Cancel reply


  • Anthonygew
    (2020-09-16 22:24:37Z)

    Привет всем участникам форума! интересный у вас сайт!
    Нашел хорошую базу кино: сериал воронины смотреть бесплатно в хорошем
    Тут: фильмы 2020 фэнтези фэнтези в хорошем качестве 2020 онлайн рейтинг 2020
    Здесь: Эксперимент Ганцфельда / The Ganzfeld Haunting (2014) смотреть онлайн бесплатно
    Здесь: В Украине есть таланты! (2009-2014) смотреть онлайн бесплатно В Украине есть таланты! (2009-2014) смотреть онлайн бесплатно

  • kyflz49
    (2020-09-16 23:02:13Z)



Top News: US