In said:Name a single vaccine that causes more morbidity and mortality than it
prevents.
That wasn't his statement.
His was, "more than the disease itself."
The fallacy is obvious, of course: any really effective
preventive measure with nonzero risk will do more harm
than what it guards against.
However, to answer you, smallpox. Zero cases prevented [1].
At least some morbidity -- the vaccine has a high profile
of adverse effects. QED.
Good examples of vaccines which do more harm than the
diseases (at least in North America) are measles and
live-virus polio. Granted, the morbidity from them is
not more than single-digits per year, and the mortality
even less -- but the diseases are practically eliminated.
For now. Locally.
[1] Medically speaking. Whether the distribution of the
vaccine helped /politically/ to prevent the release
of wild smallpox is purely speculative.
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