An alleged side effect of
the Covid-19 vaccine(s).
Turbo cancer (allegedly) causes
vaccinated individuals to have a very high risk of developing extremely aggressive cancers, which metastasize extremely quickly
to the point that they're basically untreatable.
Whether or not Turbo Cancer is real is heavily disputed and
controversial. While most sources claim that it's false,
conspiracy theorists state that these sources may be biased. The fact that some
vaccinated individuals HAVE in fact suddenly died from cancer does not help the matter, as it cannot be determined whether or not it just happened or if they really are correct.