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12ma transmittion

QuestionAnswer
What is transmission? The way in which a parasitic microorganism travels from one host to another
What must a pathogen be able to do to cause disease? Travel from one host to another. Get into the hosts tissues Reproduce Suave damage to the hosts tissues
What are the most common forms of transmission? By vector By physical contact By droplet infection
What Eukaryotic organism causes Malaria? Plasmodium
What is Malaria spread by Vector
Where do Malarial parasites live? In the red blood cells of the human host
What do Malarial parasites feed on? Haemoglobin
How is Malaria able to pass into an unborn child? Across the placenta
What does a Mosquito inject into a person that contains the infective stage of the parasite? Saliva
What is HIV? Human deficiency virus
How can HIV be transmitted? Exchange of bodily fluid Unprotected sexual intercourse Unscreened blood transfusions Use of unsterilised surgical equipment Sharing hypodermic needles Across the placenta From mother to baby during breast feeding
What is TB caused by? A bacterium
What are the two species of Tb? Mycobacterium tuberculosis and m.bovis
What makes TB contraction and spread more likely? Overcrowding Poor ventilation Poor health Poor diet Homlessness Living or working with people who have migrated from areas where TB is more common
Created by: Nathanmedland
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