CB5 Health And Disease
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What is health
A state of complete physical, mental and social wellbeing
What is meant by the term communicable diseases?
Diseases that can be passed from organism to organism
What is meant by the term non-communicable disease
Diseases that are not passed from organism to organism
What is a pathogen
A microorganism that causes diseases
What are the four pathogens
Bacterium, virus, protist, fungi
How does a bacterium pathogen make you feel ill
It releases toxins that makes us feel ill and some types of bacteria invade and destroy body cells
How does a virus pathogen make you feel ill
Viruses take over the body cells DNA causing the cell to make toxins or causing damage when new viruses are released from cells
What type of pathogen is cholera
Bacterium
What are the symptoms of cholera
Watery pale coloured diarrhoea often in large amounts
What type of pathogen is malaria
Protist
What are the symptoms of malaria
Fever, weakness and chills, sweating
What type of pathogen is HIV
Virus
What are the symptoms of HIV
Flu-like symptoms, often no symptoms for a long time
What type of pathogen is tuberculosis
Bacterium
What are the symptoms of tuberculosis
Lung damage seen in blood speckled mucus, weight loss, fever and chills, night sweats
What type of pathogen is chalara ash die back
Fungus
What are the symptoms of chalara ash die back
Leaf loss, bark lesions, dieback of the top of the tree
How is cholera spread
Water
How can cholera be prevented
Boil water to kill bacteria before drinking, wash hands thoroughly after using the toilet to prevent spread by touch
How is tuberculosis spread
Airborne
How to prevent the spread of tuberculosis
Ventilate buildings to reduce the chance of breathing in bacteria in droplets of mucus coughed out by an infected person, diagnose infected people promptly and give antibiotics to kill TB, isolate infected people
How is malaria spread
Mosquito as a vector
How to prevent the spread of malaria
Killing mosquitoes and using nets
How is chalara ash die back spread
Airborne