Introduction To Infection Flashcards
What are examples of pathogens
Bacteria Virus Fungi Protozoa Helminth Ectoparasites Sprichetes Mycobacteria Atypical bacteria
What is the definition of reservoir
Anything that allow infection to picked from e.g person, animal, plant
What is zoonosis
A disease transmitted from animal to human
What is a human restricted pathogen
Pathogens that exist only in humans
What is latency
Ability for a pathogen to lie in the body and then become activated again
What does nosocomial mean
Acquired in hospital
What exposure of a pathogen be by
Person to person contact Aerosal Oral Fomites Vectors
What does person to person mean
Direct physical contact between people
What does aerosol mean
Inhalation
What does oral mean
Ingestion
What are fomites
Objects or material
What are vectors
Living organism that can transmit infection
What do social network look at
Who is infected and who infects who
What does incubation period mean
Time taken from exposure to the development of the disease
What does pathogenicity mean
Ability of organism to cause disease
What does virulence factors mean
Factors that increase pathogenicity
What are examples of virulence factors
Adhesion
Agressions
Toxins
What do adhesions do
Help adhere the organism to the host e.g by fimbrae
What are agressions
Help to invade or evade the host e.g capsules, enzymes and plasmids
What are the roles of toxins
Help damage the host which are harmful substances
What are the 3 basic investigations for infection
Bacterial and fungal cultures
PCR
Serology
What does serology involve
Looking at antibody production after the infection
