communicable disease
caused by pathogens
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non-communicable diseases
genetic mutations and not infectious
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state of physical and metal well-being
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factors that effect health
diet, stress, life situations
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pathogens can be spread by ..
air, direct contact, water
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live and reproduce inside your cells
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produces toxins that make you feel ill and damage the body cells
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how can we prevent diseases spreading
simple hygiene, destroying vectors, isolating individuals, vaccination
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examples of hygiene
hand washing, using disinfectants, keeping raw meat away from cooked, using tissues and throwing them away
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why destroy vectors
mosquitoes, rats, houseflies etc carry pathogens from human to human
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a small amount of dead or inactive pathogen is injected to prepare the immune system by making the correct antibodies
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what is measles
-fever and red skin rash -spread by droplet infection -can be fatal -viral
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hiv is a virus that leads to aids -early symptoms are mild and flu like -hiv attacks the immune system -sexual contact or infected blood
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-plant pathogen -discolours the leaves and destroys cells so the plant cannot photosynthesise -contact and animal vectors -no cure
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-caused by bacteria in meat poultry and eggs -bacteria -caused by undercooked food and poor hygiene -symptoms are, fever, cramps, vomiting - prevent it by vaccinating chickens and good hygiene
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STD -discharge from reproductive organs -can lead to infertility, pelvic pain, ectopic pregnancies -treated with antibiotics
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agrobacterium tumefaciens
-bacterium that causes crown galls (mass of unspecialised cells)
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rose black spot
-purple/black spots on the leaves -plant can't photosynthesise -spores are carried by the wind and spread to other plants
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caused by a protist/vector -protist spreads when bitten by a female mosquito, the protists reproduce asexually in the human body -causes fever and shaking also death
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white blood cells can….
ingest pathogens, digest and destroy them -produce antibodies to destroy pathogens -produce antitoxins to counteract the toxins present
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Card 2


genetic mutations and not infectious


non-communicable diseases

Card 3


state of physical and metal well-being


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Card 4


diet, stress, life situations


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Card 5


air, direct contact, water


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