What are the 3 steps your body uses to fight diseases?
These specialized cells and parts of the immune system offer the body protection against disease.
This protection is called immunity.
Humans have three types of immunity — innate, adaptive, and passive: Innate immunity: Everyone is born with innate (or natural) immunity, a type of general protection..
How can the body fight off an infectious disease?
The primary function of the immune system is to defend the body from pathogens, which are disease-causing organisms such as viruses and bacteria. Tissues, cells, and proteins in the immune system work together to achieve this function. To fight infections, the immune system must be able to identify pathogens.
What part of the body fights diseases?
The immune system is made up of special organs, cells and chemicals that fight infection (microbes). The main parts of the immune system are: white blood cells, antibodies, the complement system, the lymphatic system, the spleen, the thymus, and the bone marrow.
How can you test your immune system?
Blood tests. Blood tests can determine if you have normal levels of infection-fighting proteins (immunoglobulin) in your blood and measure the levels of blood cells and immune system cells. Abnormal numbers of certain cells can indicate an immune system defect.
What are signs of a weak immune system?
6 Signs You Have a Weakened Immune SystemYour Stress Level is Sky-High. … You Always Have a Cold. … You Have Lots of Tummy Troubles. … Your Wounds Are Slow to Heal. … You Have Frequent Infections. … You Feel Tired All the Time. … Ways to Boost Your Immune System.