It’s possible the microchipping conspiracy theory may have had its roots in a small study funded by his foundation and published in December.
It involved technology developed at the Massachusetts Institute of Technology to include a tiny bit of dye with vaccines. The dye would be invisible to the naked eye but could be seen with a cellphone app that shines near-infrared light onto the skin.
The dye would last up to five years and allow medical workers to immediately know whether a child had gotten their vaccinations or not, which can be difficult to do in developing countries.