The Romanian pulmonologist who was an outspoken opponent of vaccines, Flavia Grosan, has died

Wednesday, Nov 19, 2025

Former Budapest physician Flavia Grosan, known for anti-vaccine posts, died after battling illness. Her controversial views were noted by colleagues and politicians.

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[This is an automatically generated summary, for reference only]

Flavia Grosan, who passed away at age 59 after a long illness and was formerly the director of a large city pulmonology clinic, gained notoriety for regularly posting on social media about the harmful effects of COVID-19 vaccines and claiming she cured thousands of patients with simple antibiotics without hospital examinations or referrals. The Bihar County Medical Chamber investigated her case following complaints from colleagues; while the initial investigation did not lead to disciplinary action, Grosan committed to referring her more serious patients to appropriate hospitals. She was known for her anti-vaccine stance, similar to some far-right Romanian politicians like Diana Sosoaca and George Simion, who offered her legal support. Her views were also recognized in Hungarian anti-vaccination circles by figures such as Árpád Szakács and Dúró Dóra. Grosan frequently referenced Donald Trump and promoted his statements on health issues, including one linking autism to childhood vaccinations, proudly stating she never prescribed paracetamol without a reason. The Bihar County Medical Chamber initiated another proceeding against her in August of this year after she claimed an unvaccinated patient contracted COVID-19 due to sexual contact with a vaccinated partner. This investigation remained open until Grosan became critically ill and was hospitalized on the intensive care unit at the end of October while battling cancer. Another physician, Jaroslav Heinzl from Prague, also drew attention for his anti-COVID-19 vaccine campaigning, but his statements were refuted by the Czech drug regulatory authority, prompting a public information campaign against misinformation regarding COVID-19 vaccines.


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