Vaccines and Vaccine Safety Facts 

Stay informed about vaccines and understand how they impact overall health. Review these key facts about vaccines and vaccine safety to help you make informed decisions about your health and well-being.    

Vaccine Clinical Trials Contribute in Big Ways 

Educating yourself about available vaccines options and schedules is crucial for making informed decisions that align with your needs and enhance your quality of life. Vaccine research continues to be of the utmost importance, helping to prevent disease and provide vaccine development to trigger the appropriate immune response to contribute to overall improved patient care and medical advances.  

Participate in Vaccine Clinical Trials 

Participating in clinical trials for vaccines is a proactive way to contribute to advancements in public health research. Vaccine trials are crucial for developing new potential vaccines and improving existing ones, and go through very specific factors in each phase, including:  

  • In Phase I clinical trials, different doses of the study vaccine are given to a small group of healthy adult volunteers to evaluate safety and immune responses before proceeding to further trial phases.  
  • Phase II trials assess safety, immune responses, different vaccine dosages, and involve a diverse group of volunteers. 
  • Phase III involves thousands to tens of thousands of people to identify rare side effects and test the vaccine’s effectiveness.  

A vaccine candidate that shows promise in early trials advances to later phases for further evaluation. Vaccine trials consider a wide range of safety concerns and include participants with underlying medical conditions to ensure comprehensive safety and efficacy data. Studies also assess the impact of exposure to multiple vaccines on non-vaccine-targeted infections in young children and compare the safety monitoring processes of COVID-19 vaccines with other vaccines.