Table 1 Key characteristics of an ideal pan-coronavirus vaccine and the relative performance of current best-licensed vaccines

From: In search of a pan-coronavirus vaccine: next-generation vaccine design and immune mechanisms

 

Ideal pan-coronavirus vaccine

Current best in class licensed vaccine (example mRNA or Ad spike)

Breadth

All coronavirus family including all current HCoV, SARS-CoV-2 (all variants) and emerging animal coronaviruses

Largely strain/variant specific

Protection conferred

Protection from infection, transmission, and disease

Protection from severe disease, limited protection from infection

Durability

Sustained protection from a single dose

Requires boosters every 6–12 months

Safety Profile

Mild reactogenicity, no severe adverse events

Mild-moderate reactogenicity (mRNA>Ad), rare severe events (e.g., thrombosis with thrombocytopenia syndrome)

Patient Population

Universal (including immunocompromised)

Potentially universal, boosting now in clinically vunerable only

Route of Administration

Needle free, mucosal targeting?

Intradermal

Manufacturing

Scalable for global roll-out

Scalable for global roll-out

Storage

Room temperature

Adenovirus 2–8’C 1 year [46]

Cost per dose

Inexpensive and not-for-profit

Adenovirus $2–5, mRNA $10–25 [47]