Re: Wuhan Coronavirus Resource Thread
Posted: 27 Jan 2021 23:58
The "efficacy" benchmark appears to be more of a marketing gimmick than anything else by pharma companies.
Consortium of Indian Defence Websites
https://forums.bharat-rakshak.com/
Picking up pace! Hopefully, we can cross 10 lakh per day faster than 5!vijayk wrote:Today 4.91 lakhs
Might cross 5 lakhs by tomorrow
Is there a vaccination tracker? I have been looking for one without luck.vijayk wrote:Today 4.91 lakhs
Might cross 5 lakhs by tomorrow
https://twitter.com/outbreak_indiaUttam wrote:Is there a vaccination tracker? I have been looking for one without luck.vijayk wrote:Today 4.91 lakhs
Might cross 5 lakhs by tomorrow
There is a lot of nonsense going around with B117. The only worry, if at all, is that the pFizer and moderna vaccine may *not* work and then the world has to rely on India's Covaxin or Chinese Sinovac which includes mandatory anal swab tests. If it is later, then even I will be definitely worried. Hello Uighur camps!Amber G. wrote:Some worry some math ..
I am using data/graphs for USA..
For India, the B117 strain is not there, but if it gets in there, it could be a really worry some and may require steps like lockdown or what-ever scientists recommend -- has to be watched and monitored .
In USA by mid March or so, this may be the dominant strain.
Math: assume if we have about 10 cases today, with this R factor
1000+ daily cases on Mar23
2000+ daily cases on Mar31
Thank you.vijayk wrote: https://twitter.com/outbreak_india
This account has been doing pretty good
Today's link
https://twitter.com/outbreak_india/stat ... 5399538704
Back in April, COVID-19 hit the city of Manaus, Brazil, extremely hard. In fact, the outbreak there was arguably the worst in the world. One study, published in the journal Science, estimated that so many people were infected that the city could have reached herd immunity — that the outbreak there slowed down because up to 76% of the population had protection against the virus.
Now the city of Manaus is seeing another massive surge in cases. This time around, the outbreak appears even larger than the first one, says Marcus Vinicius Lacerda, an infectious disease doctor at the Fundação de Medicina Tropical Doutor Heitor Vieira Dourado in Manaus. "You have much more people becoming infected and that includes people inside their [newly diagnosed patients'] households," he says.
Last week, scientists in Brazil detected a new genetic variant of the coronavirus that has been circulating in Manaus since at least December and is likely fueling the second surge. Called P.1, the variant has a set of about 20 mutations, including three mutations that are particularly concerning. These mutations could make the virus more infectious and could possibly decrease the efficacy of vaccines against the variant.
Yikes. I had just heard about this variant a few days ago, it already sounds worse than the SA variant. Hope reinfections are less severe.Uttam wrote:There is a much bigger concern regarding the P1 variant from Brazil. This one seems to be defying heard immunity.
Reinfections More Likely With New Coronavirus Variants, Evidence Suggests
Back in April, COVID-19 hit the city of Manaus, Brazil, extremely hard. In fact, the outbreak there was arguably the worst in the world. One study, published in the journal Science, estimated that so many people were infected that the city could have reached herd immunity — that the outbreak there slowed down because up to 76% of the population had protection against the virus.
Now the city of Manaus is seeing another massive surge in cases. This time around, the outbreak appears even larger than the first one, says Marcus Vinicius Lacerda, an infectious disease doctor at the Fundação de Medicina Tropical Doutor Heitor Vieira Dourado in Manaus. "You have much more people becoming infected and that includes people inside their [newly diagnosed patients'] households," he says.Last week, scientists in Brazil detected a new genetic variant of the coronavirus that has been circulating in Manaus since at least December and is likely fueling the second surge. Called P.1, the variant has a set of about 20 mutations, including three mutations that are particularly concerning. These mutations could make the virus more infectious and could possibly decrease the efficacy of vaccines against the variant.
vijayk wrote: Total Vaccinated: 28,47,608 Jan-27 4,91,629
last date is not updated on Mohfw ... you can see it here. Jan 27 data is 2355979ArjunPandit wrote:vijayk wrote: Total Vaccinated: 28,47,608 Jan-27 4,91,629
no.s different from , https://www.mohfw.gov.in/
that says as of Jan 28 8 am , it was
Total Vaccination - 23,55,979 (3,26,499)
where are you getting ur no.s from?
Those numbers are from a poster on twitter. See the link in one of the previous posts. Those numbers seems be correct. Here is the latest from TOI.ArjunPandit wrote:vijayk wrote: Total Vaccinated: 28,47,608 Jan-27 4,91,629
no.s different from , https://www.mohfw.gov.in/
that says as of Jan 28 8 am , it was
Total Vaccination - 23,55,979 (3,26,499)
where are you getting ur no.s from?
An early analysis in Britain found that the vaccine had an efficacy rate of nearly 90 percent. But in a small South Africa trial, the efficacy rate dropped to just under 50 percent.
This has been stated repeatedly in various forums, including Biden admin's last detail covid related brief. South African (and I thing they talked about Brazilian one too) was of concern (in lab environment) but even then the effectiveness (according to them) was 50% or better (Moderna the numbers some (who I trust) said/estimated was 70+%) ... Not to mention that they can ramp up and, if need be, can make and provide booster shot.DavidD wrote:There has not much been much concern regarding the B117 strain when it comes to vaccine resistance. Both Pfizer and Moderna tested their vaccines against this strain and they both work. The concern thus far is with the South African strain.
As said before, this vaccine also has deal with SII - which can produce billions of shots if/when needed.Uttam wrote:Novavax’s Vaccine Works Well — Except on Variant First Found in South Africa
An early analysis in Britain found that the vaccine had an efficacy rate of nearly 90 percent. But in a small South Africa trial, the efficacy rate dropped to just under 50 percent.
Has there been a release of the efficacy numbers from the phase 3 trials for Bharat biotechs vaccine or is it still too early?(Meanwhile countries like Canada, Brazil, South Africa are starting to order India's covid-shield)
The data (more and more), from what I know will be shared..meanwhile I know some very reputable doctors (including two of my family members) have opted (most have no choice and they got what others were getting in their center) for Covaxin and have gotten the shot few days ago. They have said "Both are supposed to give high protection" and did not seem to be concerned about which vaccine they got.Tanaji wrote:Has there been a release of the efficacy numbers from the phase 3 trials for Bharat biotechs vaccine or is it still too early?(Meanwhile countries like Canada, Brazil, South Africa are starting to order India's covid-shield)
Too early. Best case is sometime in March for the data. And it may be very delayed both as the epidemic is waning in India and volunteers who suspect they received a placebo are dropping out to get vaccinated.Tanaji wrote:Has there been a release of the efficacy numbers from the phase 3 trials for Bharat biotechs vaccine or is it still too early?
ArjunPandit wrote:this is the global no. India is rising fairly fast and fairly well..
https://ourworldindata.org/covid-vaccinations
someone please put it on twitter as we progress relative to teh world..btw must also highlight the efficacy of sin--o-vax
Analysing the data will take timeThe results of the phase-III trial of indigenously developed coronavirus vaccine candidate, Covaxin, will be available in November 2021, top officials of the National Institute of Cholera and Enteric Diseases (ICMR-NICED) in Kolkata have said. They added that the interim report may be available by May 2021 at the earliest.
I don't think any of them (except Novavax) is doing trials where the SA strain is prevelant, so I don't know where people are coming up with efficacy numbers. My understanding of this is that people are just looking at neutralizing antibody counts to estimate efficacy. That Moderna can arrive at 70% efficacy based on what they say is 1/6th the antibody count against the SA variant compared to the initial variant seems to be an inexact science to me.Amber G. wrote:This has been stated repeatedly in various forums, including Biden admin's last detail covid related brief. South African (and I thing they talked about Brazilian one too) was of concern (in lab environment) but even then the effectiveness (according to them) was 50% or better (Moderna the numbers some (who I trust) said/estimated was 70+%) ... Not to mention that they can ramp up and, if need be, can make and provide booster shot.DavidD wrote:There has not much been much concern regarding the B117 strain when it comes to vaccine resistance. Both Pfizer and Moderna tested their vaccines against this strain and they both work. The concern thus far is with the South African strain.
The main problem here is not the vaccines because they are ineffective unless people take it, and one has to increase the rate the vaccines are being distributed. (This may happen, I hope pretty soon).
US is also looking at AZ, Novavax (and Johnson & Johnson too) in near future. I believe they may have stockpile of 600 million doses by the end of spring but distributing it will take time. Both AZ and Novavax have deal with SII India for production.
(Meanwhile countries like Canada, Brazil, South Africa are starting to order India's covid-shield)
Uttam wrote:Novavax’s Vaccine Works Well — Except on Variant First Found in South Africa
An early analysis in Britain found that the vaccine had an efficacy rate of nearly 90 percent. But in a small South Africa trial, the efficacy rate dropped to just under 50 percent.
https://ec.europa.eu/commission/pressco ... /ip_21_302Through the contract, all Member States are able to purchase 300 million doses of the AstraZeneca vaccine, with an option for a further 100 million doses, to be distributed on a population-based pro- rata basis. The contract also allows the Member States to donate their vaccine doses to lower and middle income countries or to re-direct them to other European countries.
* Johnson & Johnson said its one-dose coronavirus vaccine was 72% effective in protecting against Covid-19 in the United States.
* The vaccine, however, was less potent in other regions, it said.
* J&J said the vaccine was 85% effective in preventing severe disease four weeks after vaccination in all adults.
The level of protection varied by region, J&J said, with the vaccine demonstrating 66% effectiveness overall, 72% in the United States, 66% in Latin America and 57% in South Africa after four weeks.
J&J said the vaccine was 85% effective in preventing severe disease four weeks after vaccination in all adults. The vaccine offered complete protection against Covid-related hospitalizations four weeks after vaccination, the company said.
The statement about graphs looking very valid:disha wrote:...Amber G. wrote:Some worry some math ..
I am using data/graphs for USA..
For India, the B117 strain is not there, but if it gets in there, it could be a really worry some and may require steps like lockdown or what-ever scientists recommend -- has to be watched and monitored .
In USA by mid March or so, this may be the dominant strain.
Math: assume if we have about 10 cases today, with this R factor
1000+ daily cases on Mar23
2000+ daily cases on Mar31
Mathematically your graphs look very valid.
...
If the B117 strain is so different, then it should be called a new virus. SARS-COV-2 itself is not too different from SARS. So B117 is so totally different that it is both high transmissivity and has high virulence, then that is a new virus. Since Covaxin protects against B117, it is not a major concern. Unless one talks to chorporates and their pimps in media.
Thank you very much @AmberG ji, this was good information and I was able to travel to India and back successfully with this in mind.Amber G. wrote:^^^ @Rudradev - I have not but people in my family and many people I know have. One of very good resource is FB (or whattsapp type) groups of our schools alumni - (IIT in bayarea) and there are others like "Desi's in xxx area). MEA and Indian Consulates (use twitter or email - if you can't find specific information on the webpages) are quite good too and people are quite responsive. Mostly travel has been quite smooth and hassle free (relatively speaking for 2020)
(If you have OCI, or US citizenship with a valid visa (tourists are still not allowed but visiting family etc are now ok) it has become quite smooth .. make sure you have negative PCR test (take a paper copy or photo with you) etc
Adding a bit more information from another source:Uttam wrote:J&J says its Covid vaccine is 66% effective, but the single shot may fall short against variants
* Johnson & Johnson said its one-dose coronavirus vaccine was 72% effective in protecting against Covid-19 in the United States.
* The vaccine, however, was less potent in other regions, it said.
* J&J said the vaccine was 85% effective in preventing severe disease four weeks after vaccination in all adults.The level of protection varied by region, J&J said, with the vaccine demonstrating 66% effectiveness overall, 72% in the United States, 66% in Latin America and 57% in South Africa after four weeks.
J&J said the vaccine was 85% effective in preventing severe disease four weeks after vaccination in all adults. The vaccine offered complete protection against Covid-related hospitalizations four weeks after vaccination, the company said.
"
A team of scientists at the company were "elated" and "joyful" when they saw the results, Dr. Mathai Mammen, M.D., Ph.D., the global head of Janssen Research & Development, told ABC News.
We're a single shot ... And now we've produced data that say that our vaccine is highly effective, 85% effective against severe COVID, 100% effective against hospitalization or death," Mammen said.