science2 distinct publishers
Oxford's Zostavax-to-Shingrix switch closes the healthy-vaccinee loophole, and opens another
A natural experiment at the October 2017 vaccine changeover gives the cardiovascular claim a cleaner comparison group. It also means nobody has yet measured Shingrix against no vaccine.
Reality
- Evidence63
- Adoption58
- Hype gap+20
- Incentives42