Transmission of communicable diseases
- Created by: Natasha Granville
- Created on: 24-04-18 19:33
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- Transmission of communicable diseases
- Direct
- Animals
- direct conact
- skin to skin contact
- atlete's foot
- contact of body fluids
- bacterial meningitis
- skin to skin contact
- inoculation
- through a break in the skin
- e.g. animal bite - rabies
- e.g. shared needles - septicaemia
- ingestion
- taking in contaminated food/ drink
- transferring pathogens from hands to mouth
- direct conact
- Plants
- direct contact of a health plant with any part of a disease plant
- ring rot
- Tobacco Mosaic Virus
- potato blight
- black sigatoka
- direct contact of a health plant with any part of a disease plant
- Animals
- Indirect
- Animals
- Fomites
- inanimate objects
- e.g. bedding/ socks/ cosmetics
- inanimate objects
- Airborne
- saliva and mucus expelled when coughing/ sneezing/ talking
- influenza, tuberculosis
- saliva and mucus expelled when coughing/ sneezing/ talking
- Vectors
- transmit communicable pathogens from one host to another
- e.g. Anopheles mosquito - malaria
- transmit communicable pathogens from one host to another
- Fomites
- Plants
- Soil contamination
- infective plants leave bacteria/ viruses/ spores in soil
- Vectors
- wind
- water
- animals
- Soil contamination
- Animals
- Factors affecting transmission of diseases
- Animals
- overcrowding
- malnutrition
- compromised immune system
- e.g. from HIV/AIDS or immunosuppressant drugs
- socioeconomic factors
- trained health workers
- public warning
- Plants
- overcrowding
- poor mineral nutrition
- damp, warm conditions
- increase survival and spread of spores
- climate change
- increased rainfall and wind increases spread of disease
- Animals
- Direct
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