> A separate study by Israel’s Sheba Medical Center published on Friday in The Lancet medical journal found that among 7,214 hospital staff who received their first dose in January, there was an 85% reduction in symptomatic COVID-19 within 15 to 28 days with an overall reduction of infections, including asymptomatic cases detected by testing, of 75%.
https://www.thelancet.com/journals/lancet/article/PIIS0140-6...
edit: This just came across my feed, published today. See Fig 1 for a chart that doesn't need deep stats knowledge to understand.
https://www.nejm.org/doi/full/10.1056/NEJMc2102153#.YFoyawOb...
> As shown in Figure 1A, the percentages of persons who became infected differed according to vaccination status, with infections in 234 of 8969 nonvaccinated employees (2.61%; 95% confidence interval [CI], 2.29 to 2.96), 112 of 6144 partially vaccinated employees (1.82%; 95% CI, 1.50 to 2.19), and 4 of 8121 fully vaccinated employees (0.05%; 95% CI, 0.01 to 0.13) (P<0.01 for all pairwise comparisons).
> The effect of vaccination on the preservation of our workforce has been dramatic. We observed a greater than 90% decrease in the number of employees who are either in isolation or quarantine.
As you (and the article) say, much more research is needed.