I would respectfully disagree with you here, because the interpretation i have from the data that i read substantiates the opposite, or atleast a more balanced perspective. I would perhaps be more beneficial if you include the studies you have read, so that people can research both perspectives in order to inform themselves as critical and objective as possible. In my previous post i already enlisted the WHO scientific brief from 10 may 2020, stating:
‘Within 4 weeks following infection, 90-99% of individuals infected with the SARS-CoV-2 virus develop detectable neutralizing antibodies.The strength and duration of the immune responses to SARS-CoV-2 are not completely understood and currently available data suggests that it varies by age and the severity of symptoms.
Available scientific data suggests that in most people immune responses remain robust and protective against reinfection for at least 6-8 months after infection (the longest follow up with strong scientific evidence is currently approximately 8 months).
full article available on the WHO website,
https://apps.who.int/iris/rest/bitstreams/1346855/retrieve
Another source i will enlist is the study from
bioRxiv, the pre paper server for biology. Just to specify this study, it researched the the memory b cell evolution 5 monts after vaccinations, specifically with the Moderna (mrna- 1273) or Pfizer-BioNTech (BNT162b2).
Quote: ' Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection produces B-cell responses that continue to evolve for at least one year. During that time, memory B cells express increasingly broad and potent antibodies that are resistant to mutations found in variants of concern
1. As a result, vaccination of coronavirus disease 2019 (COVID-19) convalescent individuals with currently available mRNA vaccines produces high levels of plasma neutralizing activity against all variants tested'
The above quote is a fantastic finding, given the fact that it describes that all current available mRNA vaccines produce high levels of plasma neutralizing activity against all variants. So, from that perspective i agree with your argument that vaccination provides great protection against all variants that were tested.
5 months into the memory b cell evolution, the paper concludes the following:
Results: ' Between prime and boost, memory B cells produce antibodies that evolve
increased neutralizing activity, but there is
no further increase in potency or breadth thereafter. Instead, memory B cells that emerge
5 months after vaccination of naïve individuals express antibodies that are equivalent to those that dominate the initial response.
We conclude that memory antibodies selected over time by natural infection have greater potency and breadth than antibodies elicited by vaccination. These results suggest that boosting vaccinated individuals with currently available mRNA vaccines would produce a quantitative increase in plasma neutralizing activity but not the qualitative advantage against variants obtained by vaccinating convalescent individuals.
Full study available on:
Antibody Evolution after SARS-CoV-2 mRNA Vaccination | bioRxiv
Based on the study above, i would therefore conclude that the vaccines provide protection within a 5 month period against all tested variants (note here, tested variants) After the development of memory B cells that emerge 5 months after, the conclusion was/is that there is quantitative increase in plasma neutralizing activity but not the qualitative advantage against variants obtained by vaccinating convalescent individuals.
This data seems to be in line with the drop efficancy that countries like Israel, Schotland are reporting. It also seems in line with the article i quoted from Reuters in an earlier post:
(Reuters)
'Vaccines have been shown to provide good protection against severe disease and death from Delta, especially with two doses, but there is less data on whether vaccinated people can still transmit it to others. "Some initial findings ... indicate that levels of virus in those who become infected with Delta having already been vaccinated may be similar to levels found in unvaccinated people,"PHE said in a statement.'
Full article:
https://www.reuters.com/world/uk/en...r-virus-levels-regardless-vaccine-2021-08-06/
Do you have references which have studied the protection of anti bodies through natural immunity and vaccination and their time span? Im interested to read those as well, so that i can compare the different studies. Vaccination is at the minimum a vital step for immune compromised individuals and risk groups. My intent is to study all possible perspectives as objective as possible with legitmate sources.
Appreciate the conversation!