Actual Coronavirus Infections Vastly Undercounted, C.D.C. Data Shows

loading...

“Our best estimate right now is for every case reported there were actually 10 other infections,” Dr. Redfield said.

The source for his claim was unclear at that time. The C.D.C. later posted the data on its website and on MedRxiv, a repository for scientific results that have not yet been vetted by peer review.

The C.D.C. researchers tested samples from 11,933 people across six regions in the United States during discrete periods from March 23 through May 3: The Puget Sound region of Washington where the first Covid-19 case in the country was diagnosed, as well as New York City, South Florida, Missouri, Utah and Connecticut.

[Like the Science Times page on Facebook. | Sign up for the Science Times newsletter.]

The samples were collected at commercial laboratories from people who came in for routine screening, such as cholesterol tests, and were evaluated for the presence of antibodies to the virus — which would indicate previous infection even in the absence of symptoms.

The researchers then estimated the number of infections in each area. New York City, for example, reported 53,803 cases by April 1, but the actual number of infections was 12 times higher, nearly 642,000.

  • Updated June 24, 2020

    • Is it harder to exercise while wearing a mask?

      A commentary published this month on the website of the British Journal of Sports Medicine points out that covering your face during exercise “comes with issues of potential breathing restriction and discomfort” and requires “balancing benefits versus possible adverse events.” Masks do alter exercise, says Cedric X. Bryant, the president and chief science officer of the American Council on Exercise, a nonprofit organization that funds exercise research and certifies fitness professionals. “In my personal experience,” he says, “heart rates are higher at the same relative intensity when you wear a mask.” Some people also could experience lightheadedness during familiar workouts while masked, says Len Kravitz, a professor of exercise science at the University of New Mexico.

    • I’ve heard about a treatment called dexamethasone. Does it work?

      The steroid, dexamethasone, is the first treatment shown to reduce mortality in severely ill patients, according to scientists in Britain. The drug appears to reduce inflammation caused by the immune system, protecting the tissues. In the study, dexamethasone reduced deaths of patients on ventilators by one-third, and deaths of patients on oxygen by one-fifth.

    • What is pandemic paid leave?

      The coronavirus emergency relief package gives many American workers paid leave if they need to take time off because of the virus. It gives qualified workers two weeks of paid sick leave if they are ill, quarantined or seeking diagnosis or preventive care for coronavirus, or if they are caring for sick family members. It gives 12 weeks of paid leave to people caring for children whose schools are closed or whose child care provider is unavailable because of the coronavirus. It is the first time the United States has had widespread federally mandated paid leave, and includes people who don’t typically get such benefits, like part-time and gig economy workers. But the measure excludes at least half of private-sector workers, including those at the country’s largest employers, and gives small employers significant leeway to deny leave.

    • Does asymptomatic transmission of Covid-19 happen?

      So far, the evidence seems to show it does. A widely cited paper published in April suggests that people are most infectious about two days before the onset of coronavirus symptoms and estimated that 44 percent of new infections were a result of transmission from people who were not yet showing symptoms. Recently, a top expert at the World Health Organization stated that transmission of the coronavirus by people who did not have symptoms was “very rare,” but she later walked back that statement.

    • What’s the risk of catching coronavirus from a surface?

      Touching contaminated objects and then infecting ourselves with the germs is not typically how the virus spreads. But it can happen. A number of studies of flu, rhinovirus, coronavirus and other microbes have shown that respiratory illnesses, including the new coronavirus, can spread by touching contaminated surfaces, particularly in places like day care centers, offices and hospitals. But a long chain of events has to happen for the disease to spread that way. The best way to protect yourself from coronavirus — whether it’s surface transmission or close human contact — is still social distancing, washing your hands, not touching your face and wearing masks.

    • How does blood type influence coronavirus?

      A study by European scientists is the first to document a strong statistical link between genetic variations and Covid-19, the illness caused by the coronavirus. Having Type A blood was linked to a 50 percent increase in the likelihood that a patient would need to get oxygen or to go on a ventilator, according to the new study.

    • How many people have lost their jobs due to coronavirus in the U.S.?

      The unemployment rate fell to 13.3 percent in May, the Labor Department said on June 5, an unexpected improvement in the nation’s job market as hiring rebounded faster than economists expected. Economists had forecast the unemployment rate to increase to as much as 20 percent, after it hit 14.7 percent in April, which was the highest since the government began keeping official statistics after World War II. But the unemployment rate dipped instead, with employers adding 2.5 million jobs, after more than 20 million jobs were lost in April.

    • What are the symptoms of coronavirus?

      Common symptoms include fever, a dry cough, fatigue and difficulty breathing or shortness of breath. Some of these symptoms overlap with those of the flu, making detection difficult, but runny noses and stuffy sinuses are less common. The C.D.C. has also added chills, muscle pain, sore throat, headache and a new loss of the sense of taste or smell as symptoms to look out for. Most people fall ill five to seven days after exposure, but symptoms may appear in as few as two days or as many as 14 days.

    • How can I protect myself while flying?

      If air travel is unavoidable, there are some steps you can take to protect yourself. Most important: Wash your hands often, and stop touching your face. If possible, choose a window seat. A study from Emory University found that during flu season, the safest place to sit on a plane is by a window, as people sitting in window seats had less contact with potentially sick people. Disinfect hard surfaces. When you get to your seat and your hands are clean, use disinfecting wipes to clean the hard surfaces at your seat like the head and arm rest, the seatbelt buckle, the remote, screen, seat back pocket and the tray table. If the seat is hard and nonporous or leather or pleather, you can wipe that down, too. (Using wipes on upholstered seats could lead to a wet seat and spreading of germs rather than killing them.)

    • What should I do if I feel sick?

      If you’ve been exposed to the coronavirus or think you have, and have a fever or symptoms like a cough or difficulty breathing, call a doctor. They should give you advice on whether you should be tested, how to get tested, and how to seek medical treatment without potentially infecting or exposing others.


The city’s prevalence of 6.93 percent is well below the 21 percent estimated by the state’s survey in April. That number was based on people recruited at supermarkets, and so the results would have been biased toward people who would be out shopping during a pandemic — young people, or those who had already had the virus and felt safe, experts said.

Saskia Popescu, an epidemiologist at the University of Arizona, said the C.D.C. survey might also be slanted by people with chronic conditions who are more likely to visit commercial labs. Still, it is more representative of the general population than other surveys because it included everyone who came to the labs for a variety of purposes, instead of limiting it to specific groups such as health care workers who felt sick from the coronavirus.

loading...


Source link
(Visited 3 times, 1 visits today)

Related posts:

Pubs open, gyms shut: England's health dilemma
China plans reforms to organ donation rules
Covid 19: Making the poor poorer
Catalonia places 200,000 people under new lockdown following Covid-19 surge
US marks record 57,683 new COVID-19 cases in 24 hours: tracker
As much of US marks a muted Independence Day, Trump encourages big parties
WHO says first alerted to virus by its office, not China
Paris's Louvre reopens on Monday after lockdown losses of 'over €40 million'
How coronavirus self-isolation fatigue may lead to more beach drownings this summer
what's the new coronavirus saliva test, and how does it work?
The WHO's risky communication strategy created confusion around COVID-19
England's pubs, restaurants and hairdressers reopen as COVID-19 lockdown eases
French jihadist sentenced to 30 years for IS group executions in Syria
We looked at the health star rating of 20,000 foods and this is what we found
Trump rallies against anti-racism protesters seeking to 'defame' heroes
The US has bought most of the world's remdesivir. Here's what it means for the rest of us
Antibodies against phosphorylcholine give protection against rheumatic systemic disease
Researchers determine how much oxygen the brain needs
Britain eases virus quarantine as US under siege
Researchers find fans of apocalyptic movies may be coping with pandemic better
Some say allow family access to dying patients with COVID-19
11 of Our Best Weekend Reads
China aims to phase out sale of live poultry at food markets
U.S. Coronavirus Cases Are Rising Sharply, but Deaths Are Still Down
Spain counts 17 new virus deaths in 24 hours
At least thirty villagers massacred in central Mali terror attacks
Point-prevalence surveys in SNFs help cut COVID-19 transmission
Saudi Arabia passes 200,000 virus cases
French court opens inquiry into former PM Philippe in handling of Covid crisis
Protective antibodies identified for rare, polio-like disease in children
Air France to cut 7,580 jobs at French flagship carrier and regional unit Hop!
New French PM Castex says priority to meet Covid-19 pandemic, economic crisis as he takes helm
'Data not lying', WHO urges countries to 'wake up' and halt virus
Prosecutors seek life term for French jihadist accused of Syria executions
Mystery of hundreds of elephants found dead in Botswana
Injuries shoot up after fireworks laws loosened in West Virginia
‘We can’t afford an ounce of meat’: Economic crisis strangles Lebanon
Algeria welcomes remains of fighters against colonisation from France
Neurological symptoms described in children with COVID-19
United States: In Louisiana, Cajuns are keen to preserve their identity
HIV may not worsen COVID-19 outlook
250. Split-Lebertransplantation am UKR - Biermann Medizin
Live Coronavirus Updates: U.S. Leaders Change Course
EU authorises use of remdesivir to treat coronavirus
Turkey challenges allies and enemies alike in quest for ‘larger role on world stage’
Porres neuer Chefarzt in Leverkusen
Even gut immune response is site-specific
Systemische Therapie kann jetzt mit den Krankenkassen abgerechnet werden
Inflammatory Bowel Disease Tied to Increased Dementia Risk
Macron names Jean Castex as new French prime minister
Popular chemotherapy drug may be less effective in overweight and obese women
Studie: Junge Menschen rauchen und trinken weniger
Can an Algorithm Predict the Pandemic’s Next Moves?
Death toll climbs to more than 160 in Myanmar jade mine disaster
Israeli, UAE technology firms pen deal on virus research
Netanyahu's annexation plan, China's campaign against Uighurs and Hollywood before the censors
Uniklinik Köln: Augenheilkundliche Spezialbereiche jetzt in Deutschlands größtem Krebs-Ambulatorium
Dutch report new coronavirus infection on mink farm
Berufsverband will Weiterbildungsförderung auch für Urologen
French PM Édouard Philippe and his government resign as Macron prepares cabinet reshuffle
Florida under siege as pandemic accelerates
Japan asks US to extradite two men accused of helping ex-Nissan chief Ghosn escape
MB: EU-Ratspräsidentschaft als Chance für mehr Kooperation in Gesundheitsfragen nutzen
Monkeys infected with novel coronavirus developed short-term immunity
Das sichtbare Skelett 2.0 - Biermann Medizin
Peru surpasses 10,000 coronavirus deaths: health ministry
Herzreparatur mit der Gen-Schere - Biermann Medizin
UK to end quarantine for travelers from 'low-risk' countries
Turkish court opens trial of Saudi officials in killing of journalist Khashoggi
New study reveals how the brain organizes information about odors
French court to rule on reopening probe of former Rwandan president's assassination
Study could show why heart events increase seasonally
US Senate unanimously votes to approve draconian 'Hong Kong Autonomy Act'
US new single-day Covid-19 cases hit new worldwide record of over 55,000
Study says crowdsourced data could help map urban food deserts
Police in Europe arrest over 800 users of encrypted phone system used to plot crime
Artificial intelligence brings pancreatic cancer screening one step closer to reality
The Young Cut Loose in Myrtle Beach. The Virus Followed Them Home.
Study exposes disparities in health care access in rural Southern California
Florida State University Child Care Policy Draws Backlash
Surge in domestic child abuse during pandemic, reports specialist UK children's hospital
Live Coronavirus News: Updates and Video
Marijuana use while pregnant boosts risk of children's sleep problems
US sanctions against international court staff an act of ‘revenge’, says ICC’s Fatou Bensouda
New, more infectious strain of COVID-19 now dominates global cases of virus: study
‘We disinfect everything’: Amsterdam’s red-light district re-opens
France's Macron to embark on next phase of his presidency with ‘new team’
When Your Tween Is Bored
Why are more young people getting coronavirus?
Ideen-Wettbewerb: Woche des Sehens in Corona-Zeiten
French prosecutors seek trial for football star Karim Benzema over sextape scandal
Talking With Your Teen About Anti-Racism? Be Ready to Listen
COVID-19 death risk twice as high in New York City as some countries
Turkey demands apology from France over naval incident claim
CBM-Jahresbericht 2019: Mehr Geld für die Projektarbeit
Venezuela reverses decision to expel EU ambassador
How the body fights off urinary tract infections
Riechstörungen bei COVID-19: Was wissen Mediziner aktuell?
Did a Mutation Help the Coronavirus Spread? More Evidence, but Lingering Questions
Fear spreads through Hong Kong’s pro-democracy movement after security law imposed by China

Leave a Reply

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

Next Post

Tri shenja që tregojnë se nevojitet të pini më shumë ujë

Sat Jun 27 , 2020
Është e qartë që uji pihet atëherë kur ndieni etje, mirëpo ka rezultuar që ekzistojnë disa shkaqe më pak të qarta të cilat tregojnë që nevojitet të shtoni konsumimin e ujit Trupi e përdor ujin në çdo qelizë, organ apo ind, jo vetëm për të rregulluar temperaturën e brendshme por […]