Vaccines of the future.

Area of Science:

• Vaccinology and immunology
• Infectious disease prevention
• Autoimmune disease therapeutics

Background:

• Vaccine development is progressing across near-term, medium-term, and long-term horizons.
• Several vaccines for infectious diseases like typhoid and meningitis are nearing realization.
• The 'big three' infectious diseases—malaria, tuberculosis, and HIV/AIDS—represent significant medium-term challenges.

Purpose of the Study:

• To categorize future vaccine development into distinct timeframes.
• To outline specific vaccine candidates and strategies for infectious and autoimmune diseases.
• To identify key challenges and future directions in vaccinology.

Main Methods:

• Categorization of vaccine development based on projected timelines (<10, 10-19, 20-50 years).
• Survey of current and emerging vaccine candidates, including conjugate, protein-based, and prime-boost strategies.
• Discussion of potential approaches for challenging diseases like malaria, tuberculosis, HIV/AIDS, and autoimmune conditions.

Main Results:

• Near-term vaccines include those for typhoid, Neisseria meningitidis serogroup B, shigellosis, Streptococcus pneumoniae, and Group A streptococcus.
• Medium-term vaccine development focuses on malaria, tuberculosis (re-engineered BCG, molecular, or prime-boost), and HIV/AIDS (antibody-based and mimotope strategies).
• Long-term prospects include vaccines for autoimmune diseases (juvenile diabetes, coeliac disease) and cancer, alongside advancements in combination vaccines, delivery systems, and adjuvants.

Conclusions:

• Vaccine development is advancing across multiple fronts, with near-term successes anticipated for several infectious diseases.
• Significant progress is expected in the medium term for malaria, tuberculosis, and HIV/AIDS vaccines, though challenges remain.
• Long-term research holds promise for tackling autoimmune diseases and cancer through innovative vaccine approaches, supported by improved delivery systems and adjuvants.