Vaccination

Vaccination is the administration of a vaccine, which is a biological preparation that provides acquired immunity to a particular infectious disease. Vaccines stimulate the body’s immune system to recognize and fight pathogens, such as viruses or bacteria, without causing the disease itself. This process helps the body to develop memory cells that provide long-lasting protection against future infections. Vaccination can prevent the spread of contagious diseases and is considered one of the most effective public health measures for controlling and eradicating diseases. Types of vaccines include live-attenuated, inactivated, subunit, and mRNA vaccines, among others. Vaccination has played a crucial role in reducing the incidence of various infectious diseases, leading to significant decreases in morbidity and mortality rates globally.