Bacterial and Viral Diseases
Explore the mechanisms of how bacteria and viruses cause illnesses such as measles, HIV, and Tobacco Mosaic Virus. Learn about their spread, symptoms, and ways to prevent and manage these diseases effectively.
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Presentation Transcript
CwK Wednesday, 19 March 2025 Viral Diseases Do Now Activity Explain how a bacteria makes you feel ill.
Self Assess Bacteria reproduce rapidly, releasing harmful chemicals called toxins, toxins damage tissues which makes us feel ill.
Progress Indicators Good Progress State how measles, HIV and Tobacco Mosaic Virus are spread Outstanding Progress Describe the causes and symptoms of measles, HIV and Tobacco Mosaic Virus https://www.youtube.com/watch?v=KrJsoreR2Z4&list =PL2D816042F5B7DA99&index=2&t=14s
Measles Fever Red skin rash Spread in droplets when a person sneezes or coughs Droplets inhaled Can cause damage to breathing system and the brain Can be fatal Most young children vaccinated against it
HIV First symptom flu like illness Virus attacks body s immune cells Controlled by antiretroviral drugs- not a cure Late stage HIV or AIDS means the body cannot deal with other infections or cancers Spread by sexual contact, exchange of bodily fluids E.g blood when sharing needles
Tobacco Mosaic Virus Widespread plant pathogen Affects many species of plants including tomato plants Distinctive mosaic pattern on leaves Affects growth due to lack of photosynthesis Spread by contact
Plenary State how measles, HIV and TMV are spread How could we reduce the number of cases of measles?
