This is a general pattern for the tetanus vaccine to contain sterilizing agent.
Found in the Philippines in 2010: http://vaccinerisk.blogspot.com/2010/10/tetanus-vaccine-sterilization-agent-in.html?m=1
In Kenya in 2014 and now again 5 months ago
The HPV vaccine also in 2011 http://vaccinerisk.blogspot.com/2011/03/polysorbate-80-tween-80-in-vaccines-is.html?m=1
Just to name a few...
But the vaccine program as a whole is not meant to improve how that is meant purely for Destruction...