According to the search results, "turbo cancer" is a term that has been used by some antivaxxers to describe cancers or cancer recurrences of a particularly aggressive and fast-growing variety diagnosed in younger and younger patients. However, there is no scientific evidence to support this claim. The evidence cited by antivaxxers is weak and includes anecdotes and misinterpretation of epidemiology. In fact, COVID-19 vaccines have not been shown to cause "turbo cancer". While some studies suggest that cancer patients may be more susceptible to SARS-CoV-2 infection and at a higher risk of severe COVID-19 than the general population, there is no evidence to suggest that COVID-19 vaccines cause cancer or make cancer worse.