Antibiotics
naturally acquired active immunity
The resistance of an organism to disease is known as immunity. This defense mechanism helps protect the body from harmful pathogens such as bacteria, viruses, and parasites.
Lymphocytes
You have the immune system to protect you from the infectious diseases. You have two types of immunity. Cell mediated and humeral type.
immunity is when your body fights of infectious disease
Exposure to an infectious organism, a general immune response, identification of the infectious organism by the body, and the production of specific antibodies to fight that infection.
The most significant cause of death among Native Americans after the arrival of the Conquistadors was the introduction of infectious diseases, such as smallpox, measles, and influenza. The Native American population had no immunity to these diseases, which led to devastating outbreaks and decimated their populations.
artificial active immunity
Artificially acquired active immunity
When the Spanish took over Mexico, they brought along with them many diseases that are in part responsible for the defeat of the indigenous population of Mexico. Once they became infected, it was an immediate death for the Indians, since they had no source of immunity or protection against the infectious diseases. No immunity meant that a large portion of the Indian population would be affected and soon die off.
Your immunity system protects you from getting different diseases.
Antibodies.