"muh corona"
There is also "smart dust" and "nano dust" which can be ingested/implanted
probably what Bill Gates has in mind to include in his vaccine to "cure" corona virus
https://nexusnewsfeed.com/article/human-rights/nanochips-and-smart-dust-dangerous-new-face-of-human-microchipping-agenda/
https://www.technologyreview.com/2013/07/16/177343/how-smart-dust-could-spy-on-your-brain/