Chain Of Infection Flashcards
Types of infective agents
5
Bacteria Viruses Protozoa Fungi Helminthes
Single cell microorganism multiples rapidly
Bacteria/ infectious agent
DNA or RNA is encased in protein coating. Viruses cannot reproduce outside living host cell
Effects the cell
Virus / infectious agent
Unicellular micro organisms, affect blood brain intestines
Malaria
Protozoa/Infectious agent
Tiny primitive organisms no chlorophyll
Fungi/infectious agent
Worms are flukes
Helminthes/Infectious agent
Place where pathogen grow
Examples
Patient staff member animal Food
Reservoir part of chain of infection
Exit for pathogen to leave post through blood skin mucous membrane respiratory tracts genitourinary tract and Gastro intestinal tract
Leaves and infects another
Portal of exit portal of entry
How infectious agents move from one to another
Mode of transmission
Infectious agent
Touch airborne droplets medical instruments mosquitoes vermin
Mode of transmission
Most frequent source of HAIs
2
Contact
Direct and indirect
Person to person physical contact between source and hose
Direct contact
Inanimate object involves contact with contaminated
Indirect contact
Occurs through bite from fleas ticks and mosquitoes
Vector transmission
Infection that occurs from big droplets from infected person short distance Nose conjunctiva mouth
Droplet infection