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Vaccines are biological preparations designed to provide immunity to a specific infectious disease. They stimulate the immune system to recognize and fight pathogens, such as viruses or bacteria, by mimicking the pathogen’s presence without causing disease. The development of vaccines has revolutionized global health, significantly reducing the prevalence of once-devastating diseases like smallpox, polio, and measles. Modern vaccines are built on a variety of platforms, including live attenuated, inactivated, subunit, and mRNA-based technologies, each offering unique advantages in terms of efficacy, safety, and production speed. As the world faces new infectious threats, the ongoing innovation in vaccine development remains a cornerstone of public health.
Vaccination has proven to be one of the most effective and cost-efficient strategies for disease prevention. Beyond protecting individuals, vaccines contribute to herd immunity, thereby safeguarding entire communities, particularly those who cannot be vaccinated due to medical reasons. The rapid development of COVID-19 vaccines showcased the tremendous advancements in vaccine research, including the use of novel technologies like mRNA. Vaccines continue to be a key focus of research, with ongoing efforts to improve their effectiveness against emerging pathogens, combat vaccine hesitancy, and extend immunization coverage worldwide to tackle both old and new public health challenges.

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