1) Caused by vibrio cholerae (bacterium)
2) Spread by drinking or bathing in water contaminated with infectious feces
3) Symptoms: vomiting or diarrhoea
4) Reduced by: improving sanitation, access to clean water
1) Caused by Helicobacter Pylori (bacterium)
2) Spread by eating or drinking infected food and drinks
3) Symptoms: stomach pain, ,vomiting, nausea
4) Access to clean water, improved sanitation, improved hygiene
3 of 10
Describe Chalara die ashback
1) Caused by a fungus which infects ash trees
2) Spores which spread airborne and carried away by wind
3) Symptoms: Dark lesions, blackened and wilting leaves
4) Kill infected plants, control movement of ash trees
4 of 10
Describe Malaria
1) Caused by plasmodium protist
2) Spread by mosquitos (animal vector). When they feed on an infected organisms blood, they feed on another organism which thereby spreads the plasmodium protist
3) Symptoms: flu-like, liver damage, red blood cell damage
4)
5 of 10
Describe Ebola
1) Caused by Ebola virus
2) Spread by direct contact with infected bodily fluids
3) Symptoms: Fever, diarrhoea, vomiting, internal bleeding
4) Improved sanitation, isolate infected individuals, sterilising outbreak areas
6 of 10
Describe Chlamydia
1) Caused by chlamydia (bacterium)
2) STI
3) Results in infertility if left untreated
4) Condoms and protected sex, regular screenings
7 of 10
Describe HIV
1) Caused by human immunodeficiency virus
2) Spread by infected bodily fluids
3) Weak immune system. Leads to AIDS
4) Protected sex, screenings
8 of 10
Describe the lytic pathway of viruses
1) Virus binds to host cell
2) It injects its genetic material into the host and exploits the host's cell machinery to replicate its DNA
3) New viral structures are produced and assembled
4) The cell fills up with viruses, causing the cell to lysis/burst,
9 of 10
Describe the lysogenic pathway of viruses
1) Virus binds to host cell
2) It injects its DNA and integrates it into the host cell's genome
3) The viral DNA remains dormant and the cell functions normally. Every time the cell undergoes mitosis, the viral DNA is also replicated
4) An environmental t
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