It's difficult. Do you trust J&J after what they did with their baby powder [1]? Or Pfizer [2], or Moderna who's vaccine is the most expensive and new to the scene [3]?

[1] https://www.reuters.com/investigates/special-report/johnsona...

[2] https://en.wikipedia.org/wiki/Abdullahi_v._Pfizer,_Inc.

[3] - Oxford/AstraZeneca: €1.78 (£1.61). - Johnson & Johnson: $8.50 (£6.30). - Sanofi/GSK: €7.56. - Pfizer/BioNTech: €12. - CureVac: €10. - Moderna: $18.