The world’s vaccines have experienced rapid development in recent years, especially with the emergence of the COVID-19 pandemic. Various types of vaccines have been developed, from conventional vaccines to mRNA-based vaccines. Currently, vaccine research is not only focused on COVID-19 but also other diseases such as HIV, malaria and tuberculosis. One of the most significant innovations in vaccine research is the development of mRNA vaccines, used by Pfizer-BioNTech and Moderna. This vaccine uses genetic instructions to stimulate the body’s immune response. Recent research shows that mRNA vaccines can be quickly modified to deal with new virus variants. Additionally, this research shows the potential of mRNA vaccines for applications in other diseases, such as cancer. Traditional vaccines still have an important role, especially in children’s immunization programs. Vaccines such as DTP (Diphtheria, Tetanus, and Pertussis) and Polio are continuously updated to improve efficacy and safety. Research is also looking at combination vaccines that could provide protection from multiple diseases in one shot. This not only increases vaccination compliance, but also reduces costs and the number of visits to health facilities. Meanwhile, vaccine research for HIV continues to receive attention. While there is no vaccine yet that is completely successful against HIV, late-phase trials are showing new hope. There are vaccine candidate approaches that focus on presenting HIV proteins to build a stronger immune response. Of course, the main challenge in developing this vaccine is the high variation of the HIV virus. In the context of endemic diseases, BioNTech and GSK’s renewable malaria vaccine showed positive results in trials. The RTS,S/AS01 vaccine has been used in several African countries, with promising results in reducing mortality and morbidity. The development of this vaccine is in the spotlight because malaria is the main cause of death for children in Africa. Nanoparticle-based vaccine technology is also being explored. This technology allows the development of more effective and safer vaccines. These vaccines can provide better antigen delivery, potentially improving the immune response and duration of protection. The role of global collaboration is critical in this research, with government agencies, non-governmental organizations and private companies working together to accelerate vaccine development and distribution worldwide. This is seen in projects such as COVAX, which aims to ensure equitable access to COVID-19 vaccines in low-income countries. In terms of regulations, global health bodies such as WHO and CDC continue to update guidance and recommendations regarding vaccination. This update serves to increase public confidence in vaccines. It is important to continue to educate the public about the safety and importance of vaccines to prevent the spread of disease. Finally, vaccine research is dynamic and ever-changing. New discoveries, challenges, and urgent public health needs continue to influence the direction of this research. Innovations in vaccine research represent hope for addressing not only the ongoing outbreak but also other global diseases in the future.