Decline in vaccine effectiveness - study.

[88V8]

A 700,000 head US study comparing 8-month efficacy decline of the Johnson & Johnson single-dose, the Moderna, and the Pfizer.

Overall protection against infection dropped from 87.9% to 48.1%.
The greatest decline was seen in the J&J vaccine, dropping from 86.4% to 13.1%.
Pfizer’s protection against infection dropped from 86.9% to 43.3% while Moderna performed best, going from 89.2% to 58%.

However, protection against death remained relatively robust.
For those aged below 65 the Pfizer vaccine performed best at 84.3%, with Moderna following at 81.5% and J&J at 73%.
But in those aged over 65 the Moderna vaccine retained the greatest efficacy in preventing death at 75.5%, followed by Pfizer at 70.1% and J&J at an uninspiring 52.5%.

https://www.science.org/doi/10.1126/science.abm0620

Illustrative of the need for revived prevention measures - masking, distancing - pending boosters.

V8 (boosted but still masking... it ain't exactly onerous)