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Adaptation to Facilitate Transmission of Pathogens (Vector borne (vector =…
Adaptation to Facilitate Transmission of Pathogens
Bloodborne
malaria
takes advantage of altered features of red blood cells
Facilitatess growth + development
Airborne (on dust or respiratory secretions)
Seasonal
Remain in air for long periods of time
Influenza Vvireuses
Pathogen causes coughing and sneezing -> transmission
Aero-tolerant
Vector borne
vector = reservoir
digestive tract
salivary glands
zika virus
malaria
vector not affected
Surface protein on pathogen allows it to attach to vector tissue
Life cycle of pathogen synced to feeding of host
Faceo-oral
E.Coli Salmonella
induces vomiting + diarrhoea
very stable in varied conditions e.g. digestive system
Water borne
Can colonise and proliferate in water
Environmental Reservoir
Faecal Material
Decomposing matter
Modified outer structures
Flagella for mobility
Marine-borne
Halo tolerant
Tolerate high salinity
Vertical (mother to child)
Transmission actoss the placenta
Uterine invasion
Having unprotected sex facilitates transmission
Rubella virus
Chicken pox virus
Sexual (veneral)
unprotected sexual activity
Chlamydia
HIV/AIDS virus
gonorrhea
Soil borne
form endospores
resist dessication
table in environment under range of conditions
fungi
grow in rhizosphere