bólusetningu
Bólusetning, often translated as vaccination or immunization, is the medical practice of stimulating the immune system to protect against infectious diseases. It involves administering a vaccine that presents antigens or instructions to produce them, in a manner that does not cause disease in a healthy person.
Vaccines train the immune system by prompting an adaptive response, resulting in antibodies and memory B and
Safety and regulation: vaccines undergo phased testing for safety and efficacy before approval. Common side effects
Public health impact: widespread vaccination reduces disease incidence, complications, and deaths, and can achieve herd immunity,
Development, ethics, and access: vaccine development proceeds from discovery to clinical trials, regulatory approval, and manufacturing.