New answers tagged covid-19
3
I know clinical trials have answered these question
They have not. The reason for the specific windows specified for vaccination is that these windows are what was studied in the trials. Other windows were not studied. Therefore, it is unknown what level of protection will be provided outside that window. It could even be better, but is probably about the ...
2
For the results you are interested in you need the full text of the publications.
For Pfizer/BioNTech vaccine (BNT162b2 mRNA):
N Engl J Med 2020; 383:2603-2615
DOI: 10.1056/NEJMoa2034577
Clinical Trial: NCT04368728
For Moderna vaccine (mRNA-1273):
N Engl J Med 2020; 383:1920-1931
DOI: 10.1056/NEJMoa2022483
Clinical Trial: NCT04283461
For Astra Zeneca ...
3
Canada decided to delay second doses of the three main vaccines in use here: Pfizer, Moderna, and AstraZeneca. The motivation was to get more first doses into people. The math there was
100 people get first doses, about 70% protection -- 70 protected people
50 people get both doses, about 95% protection -- 48 protected people.
Since 70 is more than 48, ...
1
You may not have had a chance to see this from the WHO: https://www.who.int/news-room/feature-stories/detail/the-sinovac-covid-19-vaccine-what-you-need-to-know
"The WHO Strategic Advisory Group of Experts (SAGE) on Immunization
has issued Interim recommendations for the use of the inactivated
COVID-19 vaccine, Sinovac-CoronaVac, developed by Sinovac/...
2
Vaccine-induced immune thormbotic thrombocytopenia (VITT): the incidence is unknown but it appears to be exceedingly rare. Risk factors for VITT are also unknown, although female sex and younger age (<55-60 yrs) were proposed as possible risk factors on initial reports.
A blood test before taking these vaccins will not be informative.
When VITT is ...
2
Live attenuated varicella vaccines do contain actual varicella zoster virus (Oka strain), which can establish infection in hosts and undergo latency like other herpesviruses including the unattenuated virus. As a result they can very rarely cause shingles or meningitis years after the receipt of the vaccine. This is a consequence of 2 things: the use of a ...
0
“A database by Gwenan Knight and colleagues at the London School of Hygiene & Tropical Medicine (LSHTM)”4,5 shows that over 94% of COVID-19 superspreading events occurred in limited ventilation areas suggesting aerosolized transmission is a strong contributor to COVID-19 infections. “Professors and Ph.D. students at the London School of Hygiene & ...
2
Apparently, you are asking whether CFR (i.e. chance of dying given a confirmed infection) is lower in the vaccinated group. Note that chance of getting a [symptomatic] infection in vaccinated groups is much lower, so your question isn't capturing the whole effect of vaccines.
But nonetheless, Public Health England has published some such data in Feb 2021 ...
5
No it's not zero, even in the US. The March 20 Vox report is talking about the clinical trials, which were conducted on tens of thousands of people, who were generally healthy.
In the subsequent rollout in the US, some vaccinated people have died as CNN reported in mid-April:
About 5,800 people who have been vaccinated against coronavirus have become ...
48
The MSDS linked to is for a product sold as a solution of 10% SM-102 in 90% chloroform. It's listed as "SM-102" because that's the interesting/useful thing that the company is selling. It's common for chemicals to be sold packaged with solvents to make a solution. Sometimes that solvent is just water, but if the product is not water-soluble in ...
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