Infectious diseases- HIV, TB, Malaria
- Created by: vezting
- Created on: 03-04-16 15:59
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- infectious diseases
- malaria
- infecting the body
- 1: immature plasmodium travels to liver and infects the hepatocyte cells
- 2: in hepatocytes it multiplies and bursts the cells, entering blood stream as mature
- 3: it then replicates in the erythrocytes
- a parasitic pathogen caused by plasmodium
- it is transmitted by the female anopheles mosquito which acts as a vector
- there are many different strains therefore many different antigens
- there is more than one life cylce when inside the body, each stage has different antigen
- the parasite is also concealed inside cells
- reducing mosquitos
- more fish to eat the larvae
- spray some bacteria
- make males sterile
- mosquito nets and repellent
- infecting the body
- HIV
- the disease
- Human imunodeficiency virus
- it destroys helper T cells and is transmitted by an exchange in bodily fluid Eg unprotected sex and blood to blood contact such as transfusions
- there is no cure howver you can take anti-viral drugs to inhibit certain enzymes and slow down the virus
- HIV causes aids. AIDs is when your immune system weakens and you die from other diseases that attack your immune system
- where do you find HIV?
- third world countires as they have less education
- they are uneducated on sexual promiscuity and the transmission
- they also have fewer means such as condoms and health clinics
- the disease
- TB
- the disease
- caused by a bacterium caled mycobacterium tuberculosis
- it is transmitted by inhaling droplets of an infected persons cough or sneeze
- these infect the lungs, and our immune system builds cell walls around the bacteria creating tubercles.
- tissue inside the tubercles dies
- gaseous exchange becomes comprimised
- preventing
- BCG vaccine and antibiotics
- TB only affects people once their immune system is comprimised Eg HIV
- you can get it by consuming milk/meat from infected cattle
- antibiotics are expensive and may become resistant
- vaccine isnt always effective
- overcrowding and poor ventilation increases spread
- the disease
- malaria
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