Leaky Vaccines Enhance Spread of Deadlier Chicken Viruses

This article is from NatGeo published in 2015 tells a lot and btw NatGeo is part of MSM. – A

https://archive.is/QLYYD#selection-211.0-211.57

For more detail check the following.

https://market-ticker.org/akcs-www?post=241902