I have heard that also, but not sure anyone has proven the swabs are contaminated with virus. However, I did see a video on Telegram done by a woman who is a research scientist, and she showed samples of the swabs made in China. Each one was marked with "EO," which means the tips are coated with Ethylene Oxide. EO is a known cancer-causing agent. She was reading off the MSDS and it certainly sounded like something I don't want up my nose on a daily basis.
What about those videos where they photographed the Chinese swabs (and masks, too) under close-up magnification, and they found those creepy moving black worm-like threads. Did they ever figure out if those entities were man-made or biological, I wonder?