コクランのレビューの要約。
http://cochranelibrary-wiley.com/doi/10.1002/14651858.CD009069.pub3/full

副反応含む有害事象について。
Adverse effects
The risk of serious adverse events is similar between control and HPV vaccines in women of all ages (669 versus 656/10,000, RR 0.98 (0.92 to 1.05), high certainty).
有害事象の発生に、ワクチンは関係ないよ、ということ。
Mortality was 11/10,000 in control groups compared with 14/10,000 (9 to 22) with HPV vaccine (RR 1.29 [0.85 to 1.98]; low certainty). The number of deaths was low overall but there is a higher number of deaths in older women.
No pattern in the cause or timing of death has been established.