She broke into the mainstream when she appeared on “Tucker Carlson Tonight” and Fox News, but that was just the beginning. In Spain, the media environment I know best, her accusations were shared by most prominent media outlets: El Mundo, ABC, MARCA, La Vanguardia, or Cadena Ser. Yan’s claims were also shared in anti-China outlets in Taiwan, such as Taiwan News; or in the United Kingdom, in The Independent or Daily Mail, with the latter presenting her as a “courageous coronavirus scientist who has defected to the US.” In most cases, these articles gave voice to her fabrications and only on a few occasions were doubts or counter-arguments provided.

Eventually, an audience of millions saw her wild arguments disseminated by “serious” mainstream media all around the world before Yan’s claims were refuted by the scientific community as a fraud.

In both cases, as usual, the initial fake news had a greater impa