Commonly Used Adjuvant Human Vaccines: Advantages and Side Effects

Area of Science:

• Immunology
• Vaccinology
• Public Health

Background:

• Vaccines are crucial for disease prevention across all age groups.
• Older adults often exhibit a diminished immune response to traditional vaccines.
• Adjuvants are increasingly used in vaccines to boost immune responses.

Purpose of the Study:

• To review the literature on adjuvants in human vaccines.
• To understand how adjuvants enhance immune responses.
• To summarize reported side effects of adjuvant vaccines.

Main Methods:

• Literature search of PubMed from January 1980 to December 2019.
• Analysis of studies on adjuvant use, mechanisms, and side effects.
• Synthesis of findings on adjuvant vaccine effectiveness.

Main Results:

• Adjuvant vaccines significantly improve humoral and cell-mediated immunity.
• Enhanced immune response is observed even in populations with reduced vaccine responsiveness.
• Adjuvant vaccines demonstrate improved protection against infections.

Conclusions:

• Newer adjuvant vaccines offer enhanced immunogenicity and protection.
• Adjuvants are valuable tools for improving vaccine efficacy, particularly in vulnerable populations.
• Continued research is essential for optimizing adjuvant vaccine effectiveness and safety.