The COVID-19 Vaccines: Recent Development, Challenges and Prospects

Area of Science:

• Immunology
• Virology
• Public Health

Background:

• The COVID-19 pandemic, caused by SARS-CoV-2, necessitates vaccine development for global health.
• Current control relies on containment, hygiene, and repurposed drugs, highlighting the need for effective vaccines.

Purpose of the Study:

• To review the development of COVID-19 vaccines.
• To highlight the efficacy and reactions of authorized vaccines.
• To critically examine advanced vaccine candidates, including mechanisms, storage, dosage, and challenges.

Main Methods:

• Review of scientific literature on COVID-19 vaccine development.
• Analysis of data on approved vaccine efficacy and adverse events.
• Critical evaluation of ongoing clinical trials for vaccine candidates.

Main Results:

• As of March 2021, 13 vaccines were approved, with over 90 in clinical trials.
• The review details efficacy and vaccination reactions of authorized vaccines.
• Advanced vaccine candidates' mechanisms, storage, and dosage are reviewed, alongside potential challenges.

Conclusions:

• COVID-19 vaccine development is progressing promisingly, though still in early stages.
• Continued adherence to social distancing and hygiene measures is necessary until widespread vaccine availability.
• Vaccine development is crucial for returning to pre-pandemic normalcy.