Week 8 Infection of Public Health Significance Flashcards
Innate immune cells
Dentric cells are antigen presenting cells that form part of the immunological barrier of the mucus membrane
Accessory structures of the integument
Hair follicles, hair, sebaceous glands and sweat glands are all natural portals of entry
Wounding
Creates a direct portal of entry
Goblet cell function
Secretory defence
Dendritic cell function
Immunological defence
Keratinocyte Function
Barrier defence
Epithelial cell function
Barrier defence
Natural killer cell function
Immunological defence
Normal regional microbiota function (respiratory system)
Competitive inhibition
Nasal hairs function (respiratory system)
Trapping particular matter
Mucus function (respiratory system)
Trapping foreign material to prevent physical contact with mucus membranes
Collated epithelium function (respiratory system)
Movement of muscles and foreign material via the mucociliary escalator
Antimicrobial secretions function (respiratory system)
Destruction of infectious agents
Secretory immunoglobulin-A (IgA) function (respiratory system)
Neutralisation of infectious agents
Cough and sneeze reflex function (respiratory system)
expulsion of particles and secretions from the respiratory tract
Alveolar macrophages function (respiratory system)
Phagocytosis of foreign matter
Tonsils and lymph nodes
Humoral and cellular immune response
What are the major portals of entry and exit in the respiratory tract
Eyes, nasal cavity, oral cavity, ears,
What is the purpose of public health
Protect the most vulnerable population members by improving overall health of the entire population
Knowledge of what is required to ensure effective control of infectious outbreak of public health concern
The transmission
Reservoir
Incubation period
Treatment options
Host susceptibility
Portals of entry and exit
Communicable diseases
Infectious agents that can be transmitted person to person via contact or common vehicle
Vaccine preventable diseases
Vaccination aims to reduce the burden of disease in a population by creating herd immunity
Multi drug resistant organisms
Aquire resistance genes as a results of selective pressure
Why do lower respiratory tract infections occur
The innate immune response is impaired