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13 Cards in this Set
- Front
- Back
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How many new cases of malaria were there in 2015. How many deaths per year of malaria are there? |
214 million new cases in 2015 438000 deaths per year |
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Malaria is a tropical disease what does this mean for places with seasonal rain fall? |
The lava for mosquito (plasmodium) are born in fresh water so there are huge increases during the rainy season |
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With climate change what will happen to malaria? |
Increase |
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What is the definition of 1.Vector 2.mechanical vector 3. Biological vector |
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What is the hosts of schistosomiasis |
Human and snail |
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What is the 1. Host and 2. Vectors of the plague and pathogen |
Hosts= flea, rat ocasionally humans Pathogen is bacteria Vector is the flea |
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What is 1.causative agent 2.host 3.vector Of malaria? |
Plasmodium Humans Anopheles mosquito |
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Explain the lifecycle of the malaria parasite |
.Mosquito bites and injects saliva with anticoagulant. .sporozoites released into the bloodstream .travel to liver and stored as schizonts until releases and bursts .the parasite infects red blood cells .then either enters the asexual blood stage or turns into a gametocytes .blood stage goes from ring form, trophozoite, schizont then the RBC explode and release more virus into the cell |
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Name a way of identifying if someone was infected with malaria |
Putting blood sample on a slide and looking to see if you can see ring form and schizont |
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Name the 4 different plasmodium species and their characteristics |
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Define hemoglobinopathies? |
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Name ways in which you can become genetically resistant to malaria |
If you are heterozygous fir sickle cell it alters the shape of your RBC making it harder for the parasite to enter If you have more MHC antigens that prevent malaria from attaching If you have Duffy blood group (no antigens) |
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Symptoms of malaria can vary between nothing to mild (anaemia, diarrhoea), severe (coma, severe anaemia and renal failure, life threatening symptoms and death. What factors effects what symptoms you get? |
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