I am in the midst of an argument about vaccine safety and efficacy so I have compiled a list of meta analyses detailing both:
Immunogenicity and safety of pandemic influenza A (H1N1) 2009 vaccine: systematic review and meta‐analysis - Yin - 2011 - Influenza and Other Respiratory Viruses - Wiley Online Library https://onlinelibrary.wiley.com/doi/full/10.1111/j.1750-2659.2011.00229.x
- "We included 16 articles in the meta‐analysis, covering 17,921 subjects...Two serious (BK note: 2/17,921 == 0.01%) vaccination‐associated adverse events were reported, both of which resolved fully. No death or case of Guillain–Barré syndrome was reported. The pandemic influenza (H1N1) 2009 vaccine, with or without adjuvant, appears generally to be seroprotective after just one dose and safe among healthy populations aged ≥36 months; very young children (6–35 months) may need to receive two doses of non‐adjuvanted vaccine or one dose of AS03A/B‐adjuvanted product to achieve seroprotection."
Immunogenicity and safety