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Mike 03

(16,616 posts)
Mon Mar 23, 2020, 07:46 AM Mar 2020

New Finding: Lost Sense of Smell May Be Peculiar Clue to Coronavirus Infection

NYT
March 22, 2020

Doctor groups are recommending testing and isolation for people who lose their ability to smell and taste, even if they have no other symptoms.

A mother who was infected with the coronavirus couldn’t smell her baby’s full diaper. Cooks who can usually name every spice in a restaurant dish can’t smell curry or garlic, and food tastes bland. Others say they can’t pick up the sweet scent of shampoo or the foul odor of kitty litter.

Anosmia, the loss of sense of smell, and ageusia, an accompanying diminished sense of taste, have emerged as peculiar telltale signs of Covid-19, the disease caused by the coronavirus, and possible markers of infection.

On Friday, British ear, nose and throat doctors, citing reports from colleagues around the world, called on adults who lose their senses of smell to isolate themselves for seven days, even if they have no other symptoms, to slow the disease’s spread. The published data is limited, but doctors are concerned enough to raise warnings.

“We really want to raise awareness that this is a sign of infection and that anyone who develops loss of sense of smell should self-isolate,” Prof. Claire Hopkins, president of the British Rhinological Society, wrote in an email. “It could contribute to slowing transmission and save lives.”

She and Nirmal Kumar, president of ENT UK, a group representing ear, nose and throat doctors in Britain, issued a joint statement urging health care workers to use personal protective equipment when treating any patients who have lost their senses of smell, and advised against performing nonessential sinus endoscopy procedures on anyone, because the virus replicates in the nose and the throat and an exam can prompt coughs or sneezes that expose the doctor to a high level of virus.

Two ear, nose and throat specialists in Britain who have been infected with the coronavirus are in critical condition, Dr. Hopkins said. Earlier reports from Wuhan, China, where the coronavirus first emerged, had warned that ear, nose and throat specialists as well as eye doctors were infected and dying in large numbers, Dr. Hopkins said.

The British physicians cited reports from other countries indicating that significant numbers of coronavirus patients experienced anosmia, saying that in South Korea, where testing has been widespread, 30 percent of 2,000 patients who tested positive experienced anosmia as their major presenting symptom (these were mild cases).


Link: https://www.nytimes.com/2020/03/22/health/coronavirus-symptoms-smell-taste.html
11 replies = new reply since forum marked as read
Highlight: NoneDon't highlight anything 5 newestHighlight 5 most recent replies
New Finding: Lost Sense of Smell May Be Peculiar Clue to Coronavirus Infection (Original Post) Mike 03 Mar 2020 OP
The peanut butter test for dementia Cetacea Mar 2020 #1
Well... NurseJackie Mar 2020 #3
"He also asked three other Alzheimer's researchers.." Cetacea Mar 2020 #9
Alzheimer's disease has struck our family and I'm eager for good news... NurseJackie Mar 2020 #10
Right. Agreed Cetacea Mar 2020 #11
How long does it last? Forever? Or only while the virus is active? NurseJackie Mar 2020 #2
Temporary intrepidity Mar 2020 #5
Thanks! NurseJackie Mar 2020 #6
Strange. kentuck Mar 2020 #4
Well....maybe. Liberal In Texas Mar 2020 #7
At this point in the game "strong" anecdotal evidence can mean everything. And it's being noticed Native Mar 2020 #8

Cetacea

(7,367 posts)
1. The peanut butter test for dementia
Mon Mar 23, 2020, 07:52 AM
Mar 2020

Very easy to do and could be a life saver, imo.If you cannot smell familiar objects you should probably get yourself tested. And do mention these findings if they tell you you are not displaying enough symptoms. Never assume that medical pros are as up to date as you are. They are over taxed and very busy.

on edit: inconclusive so far

NurseJackie

(42,862 posts)
3. Well...
Mon Mar 23, 2020, 08:04 AM
Mar 2020
https://en.wikipedia.org/wiki/Peanut_butter_test

In 2012, a systematic review had found that while there may be "an association between decreased olfaction and AD," "rigorously designed longitudinal cohort studies are necessary to clarify the value of olfactory identification testing in predicting the onset of AD."

Ivan Oransky, global editorial director of MedPage Today, also criticized the media's favorable coverage of the study, noting that the journal in which it was published, the Journal of the Neurological Sciences, "is ranked in the bottom third of neuroscience journals by Thomson Scientific's impact factor, 162 out of 252."

He also asked three other Alzheimer's researchers—Richard Caselli, Sam Gandy, and George Bartzokis—what they thought about the proposed test, and their responses were less than enthusiastic. For example, Bartzokis said, "The principal problem with smell tests is that they are nonspecific and therefore only one small piece of the diagnostic puzzle."


https://en.wikipedia.org/wiki/Peanut_butter_test#Attempts_at_replication
Attempts at replication

In 2014, a study was published, also in the Journal of the Neurological Sciences, which found no evidence of a left-right asymmetry in nasal function in Alzheimer's disease patients.

Cetacea

(7,367 posts)
9. "He also asked three other Alzheimer's researchers.."
Mon Mar 23, 2020, 11:23 AM
Mar 2020

That is not a study-it's three opinions. And the cited study- did it have a name? Was that study replicated?

NurseJackie

(42,862 posts)
10. Alzheimer's disease has struck our family and I'm eager for good news...
Mon Mar 23, 2020, 11:26 AM
Mar 2020
That is not a study-it's three opinions.
Exactly right. --- Alzheimer's disease has struck our family and I'm eager for good news as much as anyone is. But I'm not so desperate that I trust junk-science and anecdotal evidence and "experiments" that cannot be reproduced in controlled circumstances. This is what keeps people like Dr. Oz in business.

Cetacea

(7,367 posts)
11. Right. Agreed
Mon Mar 23, 2020, 11:41 AM
Mar 2020

I know a lot of people who's memories and lives were destroyed by ECT, and our own FDA recently quietly lowered the machines from Class 3 to Class 2 for children with certain conditions. They did in between Christmas and New Years despite 2000 public comments opposing it. So I get junk science. And I get profit overriding the laws of physics.

I also get junk studies, such as the ones performed by pro-ect interests, where patients are tested when still in hospital. The only long term (six months) study, partially funded by NIH and found cognitive damage in all 249 subjects. It also concluded that the degree of damage was dependent on the method and voltage used, neither which is under control by our government and are entirely up to people who do not even posses basic knowledge of electrical science.
The study was completely ignored and "safe and effective" remains the mantra, along with "we don't know how it works".

And speaking of Dr Oz, he ran an entire hour of pro-ect BS a few years ago.

I do appreciate the heads-up on the peanut butter test.
I edited it.

Also, I'm sorry that you've had to deal with it in your family. I've sen it and other forms of dementia up close as well. It's truly horrible.
Sad!

intrepidity

(7,296 posts)
5. Temporary
Mon Mar 23, 2020, 08:33 AM
Mar 2020
Dr. Clemens Wendtner, a professor of medicine at the Academic Teaching Hospital of Ludwig-Maximilians University of Munich, said that the patients regained their ability to smell after a few days or weeks, and that the loss occurred regardless of how sick they got or whether they were congested. Using nasal drops or sprays did not help, Dr. Wendtner said.

kentuck

(111,094 posts)
4. Strange.
Mon Mar 23, 2020, 08:29 AM
Mar 2020

I have not been able to smell for about three years. I thought it was a long-lasting sinus problem. I thought I had "something" a few weeks ago, bad cough, some fever, some hallucinations (same dreams over and over) diarrhea - that resembled this coronavirus.

I had one antibiotic left that I did not take the last time I needed them. I took it, along with alka seltzers. It lasted two or three weeks. I never went to a doctor. The cough was very bad. But the inhaler I take for asthma seemed to helped some.

Then I started eating a lot of small mandarin oranges. Maybe 4 or 5 per day? I noticed that my smell was coming back. I could smell the coffee when I dipped it out of the container. Everything started tasting better.

Strange... I could smell again! Our bodies do talk to us, I believe.

Liberal In Texas

(13,552 posts)
7. Well....maybe.
Mon Mar 23, 2020, 08:51 AM
Mar 2020
Several articles circulating on social media claim that losing the senses of smell and taste is the first indicator of a COVID-19 infection. Is this true?

At the moment, no peer-reviewed study or clinical statistics show that the new coronavirus has an effect on a person's senses.

Health experts don't even know the exact symptoms experienced by everyone, though fever, dry cough, tiredness and difficulty breathing appear to be the most common so far, according to the Centers for Disease Control and World Health Organization.

Moreover, loss of taste and smell is associated with allergies, which is common this time of year. It is also triggered by other factors, like cigarette smoking.


Articles making these claims are citing a recommendation from the American Academy of Otolaryngology-Head and Neck Surgery (AAO-HNS), which says anecdotal evidence shows that anosmia (smell blindness), hyposmia (a reduced ability to smell) and dysgeusia (a distorted sense of taste) seem to be associated with

"Anosmia, hyposmia, and dysgeusia in the absence of other respiratory disease such as allergic rhinitis, acute rhinosinusitis, or chronic rhinosinusitis should alert physicians to the possibility of COVID-19 infection and warrant serious consideration for self-isolation and testing of these individuals," the recommendation read.

It is impossible to self-diagnose COVID-19, and the best resource for information on symptoms will come from government agencies, like the CDC and WHO.


https://abc7chicago.com/6039557/


Native

(5,942 posts)
8. At this point in the game "strong" anecdotal evidence can mean everything. And it's being noticed
Mon Mar 23, 2020, 09:01 AM
Mar 2020

around the world. That's pretty damn strong.

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