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**Hugh** · 24-09-2021, 22:06

Quote:

Originally Posted by OLD BOY

I have never denied Covid exists, and I think it is now clear to most people with their eyes open that immunisation by infection is the only way we are going to rid ourselves of this disease.

Fortunately, we now have vaccines, which enable most of us to acquire the infection without major ill effects. Infection provides a so much better immune response than vaccination alone, and it lasts longer.

Ultimately, there is a prospect that this virus will die naturally as long as we don’t actually stop the virus from infecting people. That is why further lockdowns would do more harm than good.

According to the British Society for Immunology, that statement is not true.

https://www.immunology.org/coronavir...ection-vaccine

Quote:

Likely that for most people vaccination will induce more effective & longer lasting immunity compared to natural infection

Also…

https://www.nebraskamed.com/COVID/co...us-vaccination

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If you've had COVID-19 before, does your natural immunity work better than a vaccine?

The data is clear: Natural immunity is not better. The COVID-19 vaccines create more effective and longer-lasting immunity than natural immunity from infection.
More than a third of COVID-19 infections result in zero protective antibodies
Natural immunity fades faster than vaccine immunity
Natural immunity alone is less than half as effective than natural immunity plus vaccination..

… Natural immunity fades more quickly than vaccine immunity

Natural immunity can decay within about 90 days. Immunity from COVID-19 vaccines has been shown to last longer. Both Pfizer and Moderna reported strong vaccine protection for at least six months.

Studies are ongoing to evaluate the full duration of protective immunity, including the Johnson & Johnson vaccine.

Real-world studies also indicate natural immunity's short life. For example, 65% of people with a lower baseline antibody from infection to begin with completely lost their COVID-19 antibodies by 60 days.

What about that Israeli study suggesting natural immunity is stronger? Infectious diseases expert James Lawler, MD, MPH, FIDSA, carefully evaluates the study design of the retrospective Maccabi Health System study in his Aug. 31 briefing. In the briefing, he identifies two concerning sources of error that were not corrected for: survivorship bias and selection bias.