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Diseases

TermDefinition
Diseases Any condition that interferes with the proper functioning of the body or mind
Communicable Diseases A disease that can be passed to a person from another person, animal, or object
Pathogen Disease-causing organisms that are so small they can only be seen through a microscope
Infection A condition that occurs when pathogens get inside the body, multiply, and damage body cells
Viruses The smallest pathogens
Bacteria Tiny one-celled organisms that live nearly everywhere
Fungi Organisms that are more complex than bacteria but cannot make their own food
Protozoa Single-celled organisms that are more complex than bacteria
Hygiene Cleanliness
Immune System A combination of body defenses made up of cells, tissues, and organs that fight of pathogens and disease
Immunity Your body's ability to resist the pathogens that cause a particular disease
Inflammation The body's response to injury or disease, resulting in a condition of swelling, pain, heat, and redness
Lymphatic System A secondary circulatory system that helps the body fight pathogens and maintain its fluid balance
Lymphocytes White blood cells in the lymphatic system
Antigen Substances released by invading pathogens
Antibodies Proteins that attach to antigens, keeping them from harming the body
Vaccine A preparation of dead or weakened germs that causes the immune system to produce antibodies
STDs Infections spread from person to person through sexual contact
Contagious Period The length of time that a disease can spread from person to person
Opportunistic Infection An infection that rarely occurs in a healthy person
Carrier A person who is infected with a virus and who can pass it on to others
Created by: user-1966648
 

 



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