Massachusetts State Board Esthetics Practice Exam 2025 – All-in-One Guide to Certification Success!

Natural immunity refers to the inherent capabilities of the body to defend itself against infections. This immunity is present from birth and is a result of various biological mechanisms, including physical barriers like the skin, mucous membranes, and the production of immune cells and proteins that respond to pathogens.

Natural immunity acts as the first line of defense against pathogens, enabling the body to recognize and respond to infections without prior exposure. This is essential for overall health and plays a crucial role in the prevention of infectious diseases, making it an integral aspect of the immune system.

In contrast, acquired immunity develops as a response to exposure to pathogens or vaccination and is based on the body’s ability to remember those pathogens and respond more effectively upon subsequent exposures. Active immunity requires exposure to the disease-causing organism or a vaccine, while passive immunity involves the transfer of antibodies from another source, such as maternal antibodies passed to an infant.