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Microbes and Diseases
- microbes that cause
diseases
- Colds and flu: virus, sore throat running nose fever, air
- food Poisoning: bacteria, vomiting and diarrhoea
- cholera: bacteria, vomiting and diarrhoea, water
- athletes foot: fungus, sore cracked skin between the toes, touch
- Colds and flu: virus, sore throat running nose fever, air
- How microbes are spread
- Droplet transmission (by air: coughing, sneezing)
- - Transmission in water (drinking contaminated water)
- Transmission by vectors (such as pets, insects)
- - Transmission by contact (touching, bodily fluids such as blood and semen)
- Droplet transmission (by air: coughing, sneezing)
- some ways that diseases can be stopped from spreading
- making sure sewage is treated and disposed of properly
- adding chlorine to water to kill bacteria
- pasteurising milk
- using disinfectants, antiseptics and soaps
- immunising people with vaccines.
- making sure sewage is treated and disposed of properly
- How you body fights diseases
- Internal defences
- Immune system
- It creates a barrier that prevents bacteria and viruses from entering your body
- If a bacteria or virus does get into the body, the immune system tries to detect and eliminate it before it can
make itself at home and reproduce
- If the virus or bacteria is able to reproduce and start causing problems, your immune system is in charge of
eliminating it
- It creates a barrier that prevents bacteria and viruses from entering your body
- Immune system
- External defences
- Internal defences
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