Quote:
Originally Posted by russellw
Three more study results.
The first deals with infection rates for vaccinated v unvaccinated people which basically found that at worst (mixed socialisation) vaccinated people were 6x less likely to be infected and at best (non mixed) 8x less likely than the unvaccinated.
The next (from the USA) looked at the correlation between vaccination rates and mortality which identified that each 10% increase in vaccination coverage resulted in an 8% reduction in mortality and a 7% drop in infections.
It also noted that the pandemic reduced the National life expectancy rate by 1.5 years, the largest decrease since WWII.
The third (from the UK) looked at vaccine efficacy over time:
The study reviewed 11,123 hospital or emergency department admissions. In adjusted analyses, effectiveness of two doses of the BNT162b2 vaccine against the omicron variant was 41% against hospital admission and 31% against emergency department admission at 9 months or longer after the second dose. After three doses, effectiveness of BNT162b2 against hospital admission due to the omicron variant was 85% at less than 3 months but fell to 55% at 3 months or longer, although confidence intervals were wide for the latter estimate.
Against emergency department admission, the effectiveness of three doses of BNT162b2 against the omicron variant was 77% at less than 3 months but fell to 53% at 3 months or longer.
It concluded:
Three doses of BNT162b2 conferred high protection against hospital and emergency department admission due to both the delta and omicron variants in the first 3 months after vaccination. However, 3 months after receipt of a third dose, waning was apparent against SARS-CoV-2 outcomes due to the omicron variant, including hospital admission. Additional doses of current, adapted, or novel COVD-19 vaccines might be needed to maintain high levels of protection against subsequent waves of SARS-CoV-2 caused by the omicron variant or future variants with similar escape potential.
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Quite interesting Russell, and thanks for the continuation of the data and graphical posts.
SWMBO and I go for our 4th shots next week after the third a week prior to last Christmas.
We are scheduled to fly to the UK in early September. The figures shown above make me wonder if a pre-emptive 5th shot on September 1 would be a good idea to elevate the safety factor.
Guess I'll give myself a "sticky note" to ask the GP's opinion when we see him for the six month visit to renew scripts.
I'll try to remember to post that opinion when it occurs.
Cheers