Questions tagged [covid-19]
Describes the clinical disease caused by the SARS-CoV-2 virus
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Can the capacity for COVID-19 tests be amplified by testing multiple samples mixed together and testing each only if positive?
If I understand it right, the following steps are to be taken into account:
Taking the sample: for the proposed method more samples would have to be taken.
Transporting the sample: more samples ...
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Are countries with lower life expectancy expected to have lower death rates due to Coronavirus?
Coronavirus death rates are higher for people in the range of 80+ (14,8%) and 70-79 years old (3,6%). However, there are countries, specially in Africa, where life expectancies are in the 50-60 and 60-...
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Where to find a database containing COVID-19 information?
Is there any global database that enables the stochastic analysis of questions such as age distribution of fatalities, etc?
A Google search produced only a WHO article database: https://www.who.int/...
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What are the websites providing medical articles?
I'm new here and I'm not sure if my question is off topic, however I need some resources about medical articles concerning the effect of covid on health employees.
I found a website called sci-hub but ...
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What are some mRNA vaccines, other than COVID vaccines, that are widely used?
From what I've read, COVID vaccines belong to mRNA vaccines category.
I read in the above article that mRNA vaccines act in a different way than traditional vaccines.
[..]Traditional vaccines ...
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What would count as definitive proof that humans can develop COVID-19 immunity?
There are currently numerous debates over whether or not people who have recovered from COVID-19 develop immunity to the disease. By the standards of the the scientific community, what kind of proof ...
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How long does COVID-19-induced anosmia/hyposmia last?
I read on https://www.entuk.org/sites/default/files/files/Loss%20of%20sense%20of%20smell%20as%20marker%20of%20COVID.pdf (mirror):
There is already good evidence from South Korea, China and Italy ...
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What data is there for physicians to advise patients taking Ace Inhibitors during the COVID-19 pandemic?
Angiotensin-converting enzyme 2 (ACE2) is a membrane-bound aminopeptidase that has a vital role in the cardiovascular and immune systems4. ACE2 is involved in heart function and the development of ...
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Would slight shifting of administration times of Paxlovid impact its efficacy?
Paxlovid (nirmatrelvir/ritonavir) is an oral medication indicated for patients recently diagnosed with COVID-19 and who are at high risk of deterioration. This drug received an emergency use ...
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Covid vaccine side effects [closed]
The Pfizer Covid vaccine caused allergic reactions. For patients that are deemed to be at an increased risk of adverse side effects following a risk assessment (e.g. because of diabetes, heart disease)...
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Updates on mortality rate once on a ventilator with Covid-19?
CNN even in fairly recent articles keeps pointing to this (March 5) Lancet page (which is an editorial summarizing an even older study published on Feb 21) for mortality rates of Covid-19 on a ...
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Will everyone get the COVID-19?
There is a Ben Shapiro tweet that says:
For a variety of reasons, many Americans seem to think that
"flattening the curve" means that fewer Americans will get covid-19
total. This is inaccurate....
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Does the SARS-CoV-2 (Novel Coronavirus) live longer in a fridge or freezer?
I've read the virus lives longer on metal / plastic surfaces about three days. When I go grocery shopping I rotate dry goods and canned goods such that the virus on the outside would be dead when I ...
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Would symptoms differ from eating virus contaminated food versus breathing in virus?
Would symptoms differ from eating virus contaminated food versus breathing in virus?
Would symptoms be a good indicator where the virus is located?
The COVID-19 causes respiratory symptoms and I guess ...
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What is the point of herd immunity?
A few weeks ago the UK has been debating about herd immunity.
I understand that when most people are immune to a disease, then the disease is harder to spread. However, how are they going to ...
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Coronavirus conspiracy theory (HIV biological weapon) [closed]
There's a ridiculous conspiracy theory spreading that coronavirus is a genetically modified biological weapon gone rogue. According to one theory, the virus has traces of HIV and is designed to attack ...
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How long after COVID-like symptoms start can one still find out if what they had was COVID?
Suppose someone has COVID-like symptoms. Let's pick an arbitrary date; say they wake up coughing on February 1st, 2022, with no prior symptoms, and unknown potential exposure date.
If this person is ...
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Did the NIH study find Moderna - Moderna gave more antibodies than Moderna-Pfizer?
An NIH study studied the efficacy of different combinations of Covid-19 vaccines in terms of the level of antibodies produced. Dr. Rob Swanda tweeted out a chart summarizing the results:
So it seems ...
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What are the risks associated with imidazoquinoline adjuvant (used in one Covid-19 vaccine) related to development of autoimmune diseases?
Covaxin is an inactivated virus-based COVID-19 vaccine developed by Bharat Biotech. Recently, the Brazilian health regulator Anvisa raised few concerns regarding Covaxin, one of which was- use of a ...
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What is missing for the Pfizer-BioNTech vaccine to get "regular" FDA approval?
Last year, the US FDA issued an "Emergency Use Authorization" for Pfizer-BioNTech vaccine for Covid-19.
I read the wikipedia page on what that means, and it seems as though this can be ...
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How fast could mRNA COVID manufacturers switch from the Wuhan strain to e.g. B.1.1.7 and why?
I understand that the time it took Modena to go from the SARS-CoV-2 sequence to shipping doses for clinical trial was 44 days:
https://www.modernatx.com/modernas-work-potential-vaccine-against-covid-...
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Can this method of immunization for horses serve as a COVID-19 vaccine for humans?
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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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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What is the rationale behind using Il-6 inhibitors to treat COVID-19 patients?
According to the Infectious Disease Society of America (IDSA), one of the possible treatment options for COVID-19 patients is il-6 inhibitors (tocilizumab, sarilumab). What is the rationale behind ...
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For how long does the legal requirement to report deaths after COVID-19 vaccination to VAERS last?
The US Health and Human Services VAERS FAQ for COVID-19 says (emphasis in original):
What adverse events should healthcare providers report to VAERS after COVID-19 vaccination?
[...] Healthcare ...
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Do any studies on 'Long COVID' compare to a control group?
This study, which is citied in a Harvard Health article on Long COVID, shows that ~55% of people suffered fatigue 6 weeks after having COVID-19:
But it doesn't compare against the prevalence of '...
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What are the most common ways that COVID kills?
Looking at the death counts for 2020 published on the CDC's website, total deaths "involving COVID-19" were 375,581, but total deaths "involving COVID-19 and pneumonia" were only ...
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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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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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Does prior COVID infection increase or decrease mortality on COVID reinfection?
One recent large scale study found that a prior COVID infection doubles your risk of dying when you later catch a subsequent COVID infection.
This study followed 5 million people in the Veterans ...
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Do mutations occur while growing virus for preparing inactivated viral vaccine?
The development of mutations in virus is reported to happen during replication, especially for an mRNA type virus like SARS-COV-2
Viruses that encode their genome in RNA, such as SARS-CoV-2, HIV and
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What cells and how many of those are infected and destroyed as a result of COVID-19 vaccine?
My understanding is that cells modified by COVID-19 vaccines will eventually get killed by immune system. Do we know what cells are usually targeted by vaccines and how many of those get killed as a ...
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Is there any data on herbal supplements interfering with the efficacy of vaccination?
Here's an excerpt from a paper published in "Journal of Inflammation Research" by Dove Press for a popular and controversial herbal supplement from India:
Coronil effectively inhibited the ...
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How are two-dose vaccine schedules developed?
How are vaccination schedules determined for multi-dose vaccines? That is, are several different schedules tested in an early-phase trial? Or do the developers of a vaccine choose a schedule (based on ...
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Why does the Pfizer vaccine need storage at -70C but Moderna's only needs -20C, when they are both mRNA vaccines?
It's been widely reported in the press that Pfizer's vaccine needs storage at -70C but Moderna's only needs -20C. Why is this so, when they are both mRNA vaccines?
There's actually a looong article in ...
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Does being outdoors but in close proximity to someone make a difference in Covid-19 transmission?
In a recent news article I've read that
Outdoor haircuts were allowed in California from Tuesday, under new rules announced by the mayor, but indoor salons remain shut.
Is this kind of rule/...
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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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What data is available on hospitalization rates of COVID-19 patients by risk factor? [closed]
What data and analysis is available on hospitalization rates of COVID-19 patients by age and pre-existing condition?
Estimates of death rates have been communicated, but I have found no similar ...
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What is a sophisticated estimate of the 2019-nCoV fatality rate?
I've read through this Q&A:
Is the mortality rate of 2019-nCoV 41%?
My understanding from reading that Q&A is that in the early phase of an outbreak, there are two naive ways to estimate ...
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Why are government decisions being led by the number of COVID CASES (as opposed to actual deaths)? [closed]
Since the early days of COVID-19, when very little information was available regarding this new virus, we now have an abundance of data. Data such as:
Cases recorded, per nation, per time period
...
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Is AstraZeneca having better safety record than Pfizer or Moderna?
Recently, AstraZeneca vaccine got some bad press for few cases of blood clouts as side effect leading some countries to even suspend its use for people younger than 56 (see here).
I am not a medical ...
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How can Stockholm be close to herd immunity without having overwhelmed the healthcare system?
According to several sources, models estimate 20% of people in Stockholm are already immune to COVID-19 (2014-04-22). However, German virologists estimate (2020-04-19) that to reach herd immunity in ...
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Does wearing gloves help against being infected with COVID-19?
Walking around town I see quite a few people wearing gloves in addition to a mask. But is this actually useful? COVID-19 does not transmit via the skin, so you don't need to protect your hands per se. ...
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How can immunity be developed without a vaccine? (re Merkel's speech)
Recently, German Chancellor Angela Merkel gave a speech about the importance of slowing down Covid-19. Among her remarks were
The most important thing, the chancellor said, is to slow down the ...
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Is outside food really safe to eat during COVID-19 outbreak?
There are 2 contradicting messages out there that mandate this question:
"It may be possible that a person can get COVID-19 by touching a surface or object that has the virus on it and then touching ...
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Why are Novel Coronavirus anitbody tests disparaged?
The Novel Coronavirus antibody test has been around since February 2020 when it was invented at a Chinese University. It can measure both IgM to show infection in progress and IgG to indicate full ...
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Could an infinitesimal amount of Covid-19 be used to trigger immune response?
Could one be injected with an infinitesimal amount of Covid-19 viral particles, in a way that it would trigger an immune response long enough before the virus overran the body? Could it be injected ...
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Does a shorter COVID-19 vaccination interval increase efficacy of booster vaccines?
In performing research on COVID-19 vaccines, I came across this WebMD article regarding the efficacy of bivalent boosters against recent COVID-19 variants.
The article includes a quote from Dr. Hana ...
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Is the code from the mRNA vaccine executed by the cells as a one-off? [closed]
Is the code from the mRNA vaccine executed by the cell that has taken it up as a one-off or does the cell produce the spike proteins endlessly (like a programming loop) until the cell is killed by the ...
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Why doesn't WHO think wearing mask is protection measure for COVID-19? [duplicate]
In WHO official website "What can I do to protect myself and prevent the spread of disease?", it doesn't mention that wearing mask an effective measure to protect people.
I don't understand why ...
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