Infectious Disease Characteristics and Immune Response Quiz

Not all infectious diseases are contagious; some are caused by non-contagious pathogens.

The immune system's main role is to protect the body from harmful pathogens such as bacteria, viruses, and parasites.

Influenza, commonly known as the flu, is caused by the influenza virus and is a contagious respiratory illness.

Bacterial infections can often be treated with antibiotics, which are medications that inhibit the growth of bacteria or kill them.

Innate immunity provides immediate defense against pathogens and includes physical barriers, such as the skin and mucous membranes, as well as cellular and molecular components.

Handwashing is a simple and effective way to prevent the spread of infectious diseases by removing pathogens from the hands.

Active immunity is gained when the body's immune system produces antibodies in response to a vaccine.

Macrophages are immune cells that specialize in engulfing and digesting pathogens and cellular debris.

Malaria is transmitted to humans through the bite of infected mosquitoes, making it a vector-borne disease.

The immune response is the body's reaction to pathogens, involving recognition and elimination by the immune system.

T cells, a type of lymphocyte, play a central role in cell-mediated immunity by identifying and destroying cells infected with pathogens.

Muscle growth is not typically associated with infectious diseases; common symptoms include fever, fatigue, and cough.

Adaptive immunity creates memory cells that allow the immune system to respond more quickly and effectively upon subsequent encounters with the same pathogen.

Lymph nodes are secondary lymphoid organs; primary lymphoid organs include the thymus and bone marrow.

Antibodies, also known as immunoglobulins, are proteins produced by the immune system that recognize and bind to specific antigens.

Herd immunity occurs when a large portion of a population becomes immune to a disease, providing indirect protection to those who are not immune, such as individuals who cannot be vaccinated due to medical reasons.

Ebola is primarily transmitted through direct contact with the blood, secretions, organs, or other bodily fluids of infected individuals.

Helper T cells coordinate the immune response by releasing signals that activate other immune cells, such as B cells and cytotoxic T cells.