Prior to this, the life expectancy of my layers was 3.5 - 4 years based on organics. I ended up loosing all the birds from that generation within a year after the exposure. I started completely over 2 years ago and only lost 1 birds over winter.

Now, if we look at our ancestry and how long our relatives used to live, compared to this period of max vaccination programs and modern diseases such as cancer and MS, I think people can draw their own conclusions.