GCSE›Edexcel GCSE Biology›Mind mapsDiseaseEdexcel GCSE Biology: Mind mapStudy pack PDFAlso for this subtopic:Revision notesFlashcardsSubtopic testCover factsHealthWHO: physical, mental and social well-beingCommunicable: caused by a pathogen, spreadsNon-communicable: cannot be transmittedOne disease can raise susceptibility to othersNamed diseasesCholera (bacteria): diarrhoeaTB (bacteria): lung damageMalaria (protist): blood and liver damageHIV (virus): destroys white blood cells, leads to AIDSEbola (virus): haemorrhagic feverChalara ash dieback (fungus): leaf lossSpreadCholera through waterTB and Chalara airborneMalaria by mosquito vectorEbola by body fluidsPrevent by targeting the routeDiseasepathogens and defenceVirusesLytic: host makes new viruses, then burstsLysogenic: viral DNA joins host chromosomeLysogenic virus is dormant, may switch to lyticChlamydia and HIV spread by sexual contactPlant defencesPhysical: cell wall and cuticleChemical: antibacterial compoundsWillow bark compound is related to aspirinDetect by elimination, distribution, symptoms, testingExam tipsHealth is more than not being illLearn pathogen type and route for all sevenVaccination, nets, hygiene, isolation fit specific routes