mRNA vs DNA vs Viral Vector vs Protein Subunit Vaccines
Vaccine Platform Comparison
Comparison of 4 vaccine platforms — development speed, efficacy, storage, cost, and approved products.
mRNADNAViral VectorProtein Subunit
Full Specification Comparison
| Specification | mRNA | DNA | Viral Vector | Protein Subunit |
|---|---|---|---|---|
| Development Speed | ~6 months | ~9 months | ~12 months | ~12 months |
| Efficacy (COVID) | 95% | 66% | 66-72% | 50-79% |
| Storage | -20°C | 4°C | 2-8°C | 2-8°C |
| Cost per Dose | $10-20 | $2-5 | $4-8 | $3-6 |
| Approved Products | COVID, RSV | Limited | Ebola, COVID | HPV, Shingles, COVID |
| Boosters Needed | Yes (6 mo) | Unknown | Yes (6 mo) | Yes (varies) |
| Manufacturing | Scalable | Very scalable | Moderate | Established |
Expert Verdict
mRNA offers the fastest development and strongest efficacy; viral vectors have proven safety records; protein subunits are the most stable; DNA vaccines are cheapest but slower to market.
Subject Breakdown
mRNA
2 Category Wins
- ★ Development Speed: ~6 months
- ★ Efficacy (COVID): 95%
DNA
2 Category Wins
- ★ Storage: 4°C
- ★ Cost per Dose: $2-5
Viral Vector
0 Category Wins
Protein Subunit
0 Category Wins