CH:10 - Infectious Disease Flashcards
Infectious Disease
A disease caused by an organism such as a protoctist, bacterium or virus.
Pathogen
An organism that causes disease.
Disease Transmission
The transfer of a pathogen from a person infected with that pathogen to an uninfected person; transmission may occur by direct contact, through the air or water or by animal vectors, such as insects.
Disease Carrier
Person infected with a pathogen who shows no symptoms, but can be the source of infection in other people (not carrier of an inherited disease).
Transmission Cycle
The passage of a pathogen from one host to another is continually repeated as the pathogen infects new hosts.
Disease Eradication
The complete breakage of the transmission cycle of a pathogen so that there are no more cases of the disease caused by the pathogen anywhere in the world.
Endemic Disease
A disease that is always in a population.
Disease Vector
An organism which carries a pathogen from one person to another or from an animal to a human.
Opportunistic Infection
An infection caused by pathogens that take advantage of a host with a weakened immune system, as may happen in someone with an HIV infection.
HIV | AIDS (Full Form?)
Human Immunodeficiency Virus | Acquired Immunodeficiency Syndrome
Antibiotic
A substance derived from a living organism that is capable of killing or inhibiting the growth of a microorganism.
Antibiotic Resistance
The ability of bacteria or fungi to grow in the presence of an antibiotic that would normally slow their growth or kill them;
Antibiotic resistance arises by mutation and becomes widespread when antibiotics are overused.