https://www.bbc.co.uk/news/live/uk-57409973?amp/
However it wasn't until 2 around weeks later that we achieved a 75% vaccination rate:
Furthermore, it generally takes at least 14 days for body to produce detectable levels of antibodies; by 3 May we had achieved 34.7 million adults, out of over 52 million, vaccinated (Ok there may be a slight delay with report dates but that would be more than offset by those who took longer to build up detectable antibody levels):
So that's around 67%, leaving a difference of around 13%, which is around 7 million adults alone (i.e. we are not including children in these calculations) who had detectable antibody levels through prior infection (not vaccination) at the time this latest study was produced.
And yet detectable antibody levels are often short-lived, so many of those who were infected in the "first wave" will be excluded from those figures (which will add many more millions to those who have immunity).
Furthermore, higher antibody levels are associated with more severe symptoms, while those who are asymptomatic or have mild symptoms may not even register detectable antibody levels, so even more people will have immunity than can be detected by an antibody test alone.
https://www.bbc.co.uk/news/health-54696873
This provides yet more evidence that many millions of people had the virus without a positive test; the vast majority of these will have been mild cases of course, as people with more severe symptoms are far more likely to have taken a test.
It's important to note that we cannot prevent infections of Sars-CoV-2, but we don't need to! What matters is that the body produces memory B and C cells; the B cells are capable of producing antibodies as and when required.
Our bodies do not produce antibodies for viruses to which we have adaptive immunity against unless we encounter the pathogen but some people think that we have loads of antibodies for every pathogen we have ever encountered constantly circulating in our bodies which is completely and utterly false.
This is all good news as it means many more cases must be asymptomatic or extremely mild and we have a higher proportion of the population with immunity, than the official figures suggest and some people erroneously thought.
About 8 in 10 adults in the UK had antibodies to coronavirus by 17 May, according to the Office for National Statistics
However it wasn't until 2 around weeks later that we achieved a 75% vaccination rate:
Three quarters of UK adults vaccinated with first dose
Milestone reached as Health and Social Care Secretary gives a speech marking almost 6 months since unprecedented vaccination programme began.
www.gov.uk
Over three quarters of UK adults have been vaccinated with a first dose of the COVID-19 vaccine
Furthermore, it generally takes at least 14 days for body to produce detectable levels of antibodies; by 3 May we had achieved 34.7 million adults, out of over 52 million, vaccinated (Ok there may be a slight delay with report dates but that would be more than offset by those who took longer to build up detectable antibody levels):
People who have recieved 1st dose vaccinations by report date
03 May United Kingdom total: 34,667,904
So that's around 67%, leaving a difference of around 13%, which is around 7 million adults alone (i.e. we are not including children in these calculations) who had detectable antibody levels through prior infection (not vaccination) at the time this latest study was produced.
And yet detectable antibody levels are often short-lived, so many of those who were infected in the "first wave" will be excluded from those figures (which will add many more millions to those who have immunity).
Furthermore, higher antibody levels are associated with more severe symptoms, while those who are asymptomatic or have mild symptoms may not even register detectable antibody levels, so even more people will have immunity than can be detected by an antibody test alone.
https://www.bbc.co.uk/news/health-54696873
Levels of protective antibodies in people wane "quite rapidly" after coronavirus infection, say researchers.
The Imperial College London team found the number of people testing positive for antibodies has fallen by 26% between June and September.
This provides yet more evidence that many millions of people had the virus without a positive test; the vast majority of these will have been mild cases of course, as people with more severe symptoms are far more likely to have taken a test.
It's important to note that we cannot prevent infections of Sars-CoV-2, but we don't need to! What matters is that the body produces memory B and C cells; the B cells are capable of producing antibodies as and when required.
Our bodies do not produce antibodies for viruses to which we have adaptive immunity against unless we encounter the pathogen but some people think that we have loads of antibodies for every pathogen we have ever encountered constantly circulating in our bodies which is completely and utterly false.
This is all good news as it means many more cases must be asymptomatic or extremely mild and we have a higher proportion of the population with immunity, than the official figures suggest and some people erroneously thought.