Questions tagged [covid-19]
Describes the clinical disease caused by the SARS-CoV-2 virus
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Hazmat suit for Covid-19?
Now before you start a rant that covid-19 is airborne and not spread by sweat or blood, I need you to understand that I am frequently touching objects (ie: furniture) in a place that houses more than ...
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0answers
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corona virus vaccine side effects [closed]
First I like to mention that I have no medical background
I have read that there are 2 types of vaccines for the corona virus currently developed
A RNA based vaccine, which is based on a novel ~...
11
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1answer
4k views
Why isn't COVID-19 just called SARS-2? Isn't it a second SARS?
Severe Acute Respiratory Syndrome (SARS) is a disease caused by SARS-CoV—the "SARS CoronaVirus".
We now have a second disease caused by a second coronavirus, which we call SARS-CoV-2.
So why ...
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0answers
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A covid-19 strategy based on rapid “contagiousness tests” - how to make it work?
Background / research so far
I am very intrigued by the idea of rapid "contagiousness tests", "infectiousness tests" or just "rapid tests" for SARS-CoV-2 which have ...
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0answers
15 views
Strategies to conserve filters
If using reusable elastomeric respirators with dual filters (e.g. 3M 6200, 7502, or 6800) in medical settings with potential contact with Covid positive people, in order to conserve the limited number ...
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0answers
18 views
Is using a shield rather then a mask effective with covid-19?
I am seeing more people wearing a shield rather then a mask in public. I read this article here that talked about a mask alone as protection. To summarize the answer it was maybe a shield alone offers ...
2
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0answers
23 views
COVID-19 vaccine
A group of scientist developed Equine polyclonal antibodies (EpAbs) obtained after immunization of horses with the receptor-binding domain of the SARS-CoV-2 viral Spike glycoprotein.
https://ri....
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1answer
33 views
Is chronic fatigue syndrome a symptom of myocarditis?
In the past few weeks I've seen news that Covid-19 infection is often followed by myocarditis or effects similar to chronic fatigue syndrome (though it is simply too soon to call it CFS).
Because both ...
3
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1answer
37 views
How sophisticated were efforts to track the spread of past pandemics for public information?
I am currently inquiring into the COVID Tracking Project for a first-year university course. I would like to give some historical context, i.e. past attempts at pandemic tracking.
Searching the web ...
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3answers
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Does a KN95 that says 'non medical' helps to protect against COVID-19?
I saw this type of face masks on a 'building tools' store (like home depot), and on the label said, among other things in chinese and english, non medical.
In this KN95 Masks Explained mentions
...
3
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0answers
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Would a vaccine made for humans work on animals who can get the same virus?
Recently it has been reported some dogs and cats getting covid-19. This doesnt seem to be so common I suppose, since we only hear about a few cases but I'm assuming they can transmit the virus anyway. ...
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23 views
How to measure how long does a vaccine last?
Recently I read someone arguing against pharmaceuticals saying COVID 19 vaccine immunity would last around a year. His argument was that how do they know that it's good for a year if a year has not ...
4
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0answers
62 views
How long does it take for the COVID-19 antibody to disappear?
I saw a news article says; 90 days after the infection with ncov19, several patients had no detectable antibodies in their bloodstream. This seems to be one of their evidence that immunity against ...
2
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1answer
178 views
In the Moderna phase 3 clinical trial of the vaccine for COVID-19 what is in the placebo?
Moderna has started a phase 3 clinical trial to evaluate if their vaccine can prevent coronavirus disease 2019.
What specifically is in the placebo?
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0answers
23 views
Could I infect someone else with a disease if I have already received a vaccine for said disease?
I was recently having a conversation with someone I am very close to in which there was some confusion on how a disease (specially a virus) could be passed from person A to person B, even if person A ...
0
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1answer
64 views
Is an “asymptomatic COVID-19 case” a misnomer?
I've seen references to asymptomatic COVID-19 cases, and am wondering if this is incorrect use of the term. If COVID-19 is the disease caused by the novel coronavirus SARS-CoV-2, then aren't truly ...
2
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0answers
27 views
how to test the effectiveness of a mask concept, that creates artificial distance
Distance is seen as a very good precaution against COVID-19.
If we all could breath in at a hight of say 2 meters and breath out a a hight of 50 cm, then we could stand right next to each other and ...
2
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1answer
31 views
How would we run experiments to determine the prevalence of aerosol COVID19 spread (long time and long distance) versus droplets?
The droplets vs aerosol debate for COVID19 is heating up. WHO has revised it's aerosol evidence review here:
https://www.who.int/news-room/commentaries/detail/transmission-of-sars-cov-2-implications-...
4
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1answer
72 views
Would it make sense to use aspirin as a prophylactic against covid-related blood clotting?
Autopsies indicate blood clots are lethal in COVID-19. So what Is Known About COVID-19 and Abnormal Blood Clotting?
I was trying to think of something that might cut down on deaths from covid-19, ...
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0answers
35 views
Are cruise-ships and nursing-homes really hotspots for Covid-19 morbidity? [closed]
The press seems to suggest that cruise-ships and nursing-homes are hotspots for Covid-19 morbidity. Is that really so? And if so, are there common denominators between the two?
2
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1answer
50 views
In a phase 3 vaccine trial how many persons actually receive the trial vaccine?
Perhaps I am making an incorrect assumption, but when it is reported that 30,000 participants are being inoculated, I take that to mean that about 15,000 are getting the vaccine and about 15,000 are ...
5
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1answer
56 views
How accurate are dogs to detect whether a human has COVID-19?
I read on https://www.businessinsider.com/sniffer-dogs-answer-to-the-covid-19-testing-crisis-mirror-2020-4:
Medical detection dogs able to sniff 750 people an hour could help identify coronavirus ...
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0answers
22 views
What's the probability of catching COVID-19 more than once?
In this YouTube video Can you catch coronavirus more than once? l GMA Digital the doctor says that "we don't really know yet".
Assuming that the answer could be yes, what's the probability ...
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0answers
21 views
Can SARS-CoV-2 possibly overcome herd immunity without mutation in densely populated countries and places?
Can the coronavirus that causes covid-19 possibly overcome herd immunity without mutation using immune individuals as hubs till it reaches vulnerable individuals in very densely populated countries ...
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0answers
39 views
Could a COVID-19 vaccine provide better or longer immunity than actual infection?
Could a COVID-19 (or other coronavirus) vaccine possibly provide better or longer immunity than an actual infection?
If yes, how does it work?
If no, should an antibody test precede vaccination?
I did ...
-1
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1answer
50 views
Is there data on the effectiveness of masks for preventing COVID-19 transmission in outdoor settings?
In the COVID-19 pandemic, many jurisdictions are now requiring that masks be worn in public, often including both indoor and outdoor settings. However, many sources (including widely cited preprints ...
3
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1answer
53 views
Do participants of the COVID-19 vaccine trials get exposed to the virus?
It might be obvious to many in the medical field, but it had me wondering when reading about the new trials for the Oxford-AstraZeneca vaccine that is currently being tested on a group of people.
When ...
4
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1answer
77 views
How did COVID-19 jump the species barrier?
I am not a medical professional. I also do not have enough knowledge on medicine or biology. But I have been wondering a lot about one question in particular for some time: How did COVID-19 jump the ...
4
votes
1answer
69 views
What is the difference between medical grade and non-medical grade disposable masks?
One can buy a disposable product which appears identical to medical grade disposable surgical masks, but is not. The package or item description typically includes a clear indication that it is not ...
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1answer
92 views
Total number of deaths in the USA before COVID-19 and in 2020?
I would like to compare before and after COVID-19. I want to know if there was a raise, how high, and if there was a shift from other causes to COVID-19.
The media is very biased and only reports the ...
-2
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0answers
29 views
Are there studies about the use of N95/FFP2 masks in less contaminated areas?
All studies I read about face masks mainly focus on highly contaiminated areas like intensive care units.
In groceries stores, universities etc. the level of harmful aerosols in the air is much lower ...
2
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1answer
98 views
How long does coronavirus stay alive on home floors?
I'm not saying that the floor is wet. But I feel even when our shoes or dry, it can carry virus with it and may get attached to floors.
If this happens, how long it can stay on the floor tiles of a ...
4
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0answers
80 views
Why does there seem to be such a big difference in case mortality between the USA and Europe?
At the time of writing (11 July 2020) the USA have almost 3.2 million confirmed cases of coronavirus infections, while Europe has slightly over 1.8 million with the USA passing Europe around 10 May ...
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0answers
49 views
Will preventive measures of COVID-19 pandemic ever lessen to a great extent in the most parts of the world? [closed]
People always say in hard times that "this too shall pass". Is it right for COVID-19 pandemic (please see what I mean by pandemic here. My English is a bit weak so this word might not be ...
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0answers
81 views
Fact check: Was remdesivir treatment associated with a 62% reduction in mortality rate?
On July 10, 2020, Gilead announced
remdesivir treatment was associated with significantly improved clinical
recovery and a 62 percent reduction in the risk of mortality compared to
standard of care......
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0answers
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Respirator with exhale filter
What is an example manufacturer/model of a respirator that has an exhalation filter?
I'd like to purchase a respirator as a more-effective and reusable solution to preventing the spread of COVID-19, ...
4
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0answers
73 views
Why does the world-wide COVID-19 death rate appear to be constant?
Total confirmed COVID-19 deaths per million people
One would normally expect the total deaths to be growing exponentially (going viral) or to be damping down and approaching a constant (zero new ...
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0answers
13 views
How is it determined the cause of death of a person with more than one virus?
Recently it's been reported by italian researchers that the viral load of covid-19 went down. viral load coronavirus (spanish) This claim was contested by WHO. Another italian virologist went as far ...
13
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4answers
8k views
Why use a placebo in some potential COVID-19 vaccine trials?
With potential COVID-19 vaccine trials beginning around the globe, one vaccine approach is to induce the creation of antibodies in the participants.
The first phase of the trial will check whether ...
2
votes
1answer
68 views
Why Covid 19 death record shows ridge and trough?
Here's something I find interesting about Covid 19 death record: The up and down cycle must repeat itself once the horizontal timescale is sufficiently short, regardless of whether the general trend ...
0
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1answer
60 views
COVID-19 and genomic sequencing
The most common explanation given for the large amount of COVID-19 infections in Victoria (Australia) is that it has been transmitted from inbound people in quarantine via security guards to their ...
5
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1answer
74 views
Has increased Hand-washing during Coronavirus lockdown helped reduce transmission of the Common Cold & other Viruses?
One of the main preventative measures for Coronavirus currently recommended is standard hand-washing with soap and water for at least 20 seconds.
Anecdotally at least people have increased their hand-...
3
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0answers
28 views
What happens to a disposable FFP2/N95 respirator during the prolonged use?
Background
The area I live in has a regulation that people should wear PPE when visiting grocery stores, etc. There is a shortage of PPE. I have access to some non-reusable FFP2-class respirators that ...
1
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3answers
309 views
What is the principal goal in pooled COVID-19 testing?
Pooled testing for COVID-19 is being considered as a method to ramp up testing Stat News. Apparently this is being considered by the White House coronavirus team.
It's not clear to me what the goal of ...
4
votes
1answer
96 views
For what definition of “significant” is it true that “99 percent of [Covid-19] infected people have no significant illness from it”?
Hoover-affiliated physician Scott W. Atlas wrote:
More importantly, it was never a policy goal to eliminate all cases of COVID-19. That is impossible, unnecessary and illogical, when 99 percent of ...
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0answers
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What happens to albumin level in COVID-19 patient?
As we all know that albumin is a negative inflammatory phase reactant. In severe inflammation, the level of albumin goes down. In one of our reviews, we found that hypoalbuminemia is occurring in ...
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0answers
21 views
Is it better to diversify across multiple vaccines?
It is certainly good to study multiple coronavirus vaccines at this point, but that is not what I mean by this question. What I mean is: suppose a vaccine appears safe and effective from trials, is ...
1
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1answer
29 views
For the people who are treated with interferons, does this provide them extra protection against corona virus?
It is known that interferon inhibits the viruses replication process. At the same time, they don't give it to people with COVID-19 because we don't want the flu-like symptoms to get worse. How about ...
4
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0answers
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What's the fastest Covid-19 test available?
This video 1 minute COVID 19 test talks about a 1 minute COVID-19 test which isnt available to the public yet. In the market and online, you can find fast COVID-19 tests which deliver the result in 10 ...
0
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0answers
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Sterilizations of disposable face mask so that it can be reused many times? [duplicate]
The bag says "not sterilized, 100% polypropylene,
two layers of non-woven fabric, disposable"
How can I sterilize the mask so that I can use the mask as many times as possible, that is without ...
