Immunity is a defense system in multicellular organisms. It consists of both specific and nonspecific components that act as barriers or eliminators for pathogens. Immune systems protect people from many kinds of harmful agents. To better understand the importance of immunity, it is helpful to first understand what it is. What is immunity? The immune system is responsible for maintaining a healthy body and preventing disease. newstribune However, immunity does not always prevent disease.
In general, the immune system works to clear the body of infected or malfunctioning cells. In addition to destroying these cells, immunity also helps us fight against infectious diseases. Older people tend to have weakened immunity compared to young people, dailybulletin which makes them more vulnerable to various infections. Immunity normally takes 8 to 10 years to develop and becomes weaker with age. Once we reach the age of 60, the immune system begins to deteriorate, and the rate is dependent on the individual’s genetic make-up.
The body develops immunity to fight pathogens and cancer. This system strengthens with age, but it doesn’t last forever. There are two types of immunity: acquired immunity and natural immunity. Innate immunity protects the body against infections by recognizing pathogens and mounting an immune response quickly. Acute immunity is a result of an infection and does not confer long-term immunity on the host. To help the body fight infection, the immune system has four parts. dailybase