Biotechnology has transformed healthcare by enabling the development of innovative diagnostics, therapies, and vaccines. Techniques like recombinant DNA technology allow mass production of essential proteins, such as insulin and clotting factors. Monoclonal antibodies are used for targeted cancer therapy, while gene therapy offers potential cures for genetic disorders. Biotechnology also plays a key role in vaccine development, as seen with mRNA vaccines for COVID-19. Furthermore, personalized medicine uses genetic profiling to tailor treatments for individuals, improving effectiveness and safety. Overall, biotechnology accelerates medical research, enhances therapeutic options, and contributes to disease prevention and patient care on a global scale.