Quantcast

This WHO Doc Just Blew A Giant Hole In Mask Rules

Screenshot: C-SPAN

“It still appears to be rare that an asymptomatic individual actually transmits onward.”

(CNN) The spread of Covid-19 by someone who is not showing symptoms appears to be rare, Maria Van Kerkhove, the World Health Organization’s technical lead for coronavirus response and head of the emerging diseases and zoonoses unit, said during a media briefing in Geneva on Monday;

[Maria D. Van Kerkhove, Ph.D. is an American infectious disease epidemiologist with a background in high threat pathogens.]

“From the data we have, it still seems to be rare that an asymptomatic person actually transmits onward to a secondary individual.

...article continued below
- Advertisement -

“We have a number of reports from countries who are doing very detailed contact tracing. They’re following asymptomatic cases, they’re following contacts and they’re not finding secondary transmission onward. It is very rare — and much of that is not published in the literature.” 

“We are constantly looking at this data and we’re trying to get more information from countries to truly answer this question. It still appears to be rare that an asymptomatic individual actually transmits onward.”

Van Kerkhove went on to describe how the novel coronavirus, a respiratory pathogen, spreads through droplets, which can be released when someone coughs or sneezes:

“It passes from an individual through infectious droplets. If we actually followed all of the symptomatic cases, isolated those cases, followed the contacts and quarantined those cases, we would drastically reduce — I would love to be able to give a proportion of how much transmission we would actually stop — but it would be a drastic reduction in transmission.” 

Van Kerkhove also said that what appear to be asymptomatic cases of Covid-19 often turn out to be cases of mild disease.

...article continued below
- Advertisement -

“When we actually go back and we say how many of them were truly asymptomatic, we find out that many have really mild disease,” Van Kerkhove said.

“They’re not quote-unquote Covid symptoms, meaning they may not have developed fever yet, they may not have had a significant cough, or they may not have shortness of breath — but some may have mild disease,” she said. “Having said that, we do know that there can be people who are truly asymptomatic.”

Many people with Covid-19 who may appear to be asymptomatic actually could just have mild or atypical symptoms — or they could be pre-symptomatic, Dr. Manisha Juthani, an infectious diseases specialist and associate professor of medicine and epidemiology at Yale School of Medicine, said in an email to CNN on Monday.

Pre-symptomatic refers to the early stages of an illness, before symptoms have developed, whereas asymptomatic may refer to having no symptoms throughout the course of an infection — a distinction that Van Kerkhove hinted at during Monday’s media briefing.

Juthani, who did not participate in the media briefing and has not reviewed the unpublished data Van Kerkhove cited, said those findings are not necessarily inconsistent with other estimates regarding how pre-symptomatic spread of the coronavirus can occur.

A study in April found that viral shedding — when people may be able to infect others — could begin two to three days before symptoms appeared. In addition, the US Centers for Disease Control and Prevention estimates in planning scenarios that 40% of coronavirus transmission is occurring before people feel sick.

“These patients weren’t asymptomatic,” Juthani said. Rather, they were “spreading disease before becoming symptomatic.”

Overall, “these findings suggest that if we quarantine and contact trace symptomatic people, we can make a significant dent in the pandemic,” Juthani said.

Making this distinction between asymptomatic and pre-symptomatic infections remains important — but also between “paucisymptomatic infections,” which refers to having atypical or very mild symptoms, Babak Javid, a principal investigator at Tsinghua University School of Medicine in Beijing and consultant in infectious disease at Cambridge University Hospitals, said in a written statement distributed by the UK-based Science Media Centre on Monday.

Javid said in the statement:

“Detailed contact tracing from Taiwan as well as the first European transmission chain in Germany suggested that true asymptomatics rarely transmit. However, those (and many other) studies have found that paucisymptomatic transmission can occur, and in particular, in the German study, they found that transmission often appeared to occur before or on the day symptoms first appeared.

“Other data available, from studies in several continents confirming that presymptomatic transmission does occur, would suggest that being well does not necessarily mean one cannot transmit SARS-CoV-2.

“This has important implications for the track/trace/isolate measures being instituted in many countries.”

CNN’s Michael Nedelman contributed to this report.

Dr Van Kerkhove holds a Ph.D. in infectious disease epidemiology from the London School of Hygiene and Tropical Medicine, a M.S. in Epidemiology from Stanford University, and a B.S. in Biological Sciences from Cornell University.

ALSO ON HEADLINE HEALTH TODAY: Race Protests ‘Perfect Recipe’ For New Outbreaks, Says Fauci | Motown Star Dies At 69 | Jack Ma Opens Checkbook For Covid-19 Relief

- Advertisement -

TRENDING

Game-Changing Covid Treatment Pill May Be Just Months Away

At least three promising antivirals for covid are being tested in clinical trials, with results expected as soon as late fall or winter.

U.S. Is Discarding Millions Of Doses Of Unwanted Vaccines

The federal government is working with Covid-19 vaccine manufacturers to reduce the number of doses per vial, amid growing concerns about wasted vaccines.

Pop Star Makes Stunning Discovery: ‘People Are Scared Of Big Boobs’

“I lost 100,000 followers, just because of the boobs. People are scared of big boobs.”

Vaccinated People Are ‘Just as Likely’ to Spread Covid: True?

The Atlantic – For many fully vaccinated Americans, the Delta surge spoiled what should’ve been a glorious summer. Those who had cast their masks aside...

Biden Admin. Awards $150K To Florida District That Resisted DeSantis

WASHINGTON — The Biden administration said on Thursday that it was reimbursing a Florida school district that lost state money for imposing a mask...

Ivermectin: What The Evidence Says

Daily Briefing, September 21, 2021 ADVISORY BOARD – Ivermectin is an anti-parasite drug discovered in 1975. It was initially introduced as a drug for livestock,...

CDC Backs COVID Booster For Millions

AP – The Centers for Disease Control and Prevention on Thursday endorsed booster shots for millions of older or otherwise vulnerable Americans, opening a...

Doctors Charged In Massive Fraud Including False Covid Claims

NBC NEWS – The Department of Justice has announced criminal charges against 42 medical professionals, including 23 doctors, and nearly 100 other people for...

Middle-School Mom Rips School Board Over Anal Sex Reference

FOX NEWS – A Texas school district has removed a book from schools after an irate mother read aloud an excerpt about anal sex...

State Cops Sue Governor To Block Vaccine Mandate

FOX NEWS – The union that represents about 1,800 Massachusetts State Police troopers went before a judge Wednesday asking for a delay in the...
- Advertisement -