Diseases Flashcards
what are some microbes
infectious diseases
what are infectious diseases
diseases that can be spread from person to person
how are microbes spread
by air, water, touch, animals and sex
what microbe causes cold and flu
virus
symptoms of cold and flu
sore throat, running nose, fever
how is a cold and flu spread
air
what microbe causes food poisoning
bacteria
symptoms of food poisoning
vomiting, diarrhoea
how is food poisoning spread
food
what microbe causes cholera
bacteria
symptoms of cholera
vomiting, diarrhoea
how is cholera spread
water
what microbe spreads athlete’s foot
fungus
Symptoms of athlete’s foot
Sore cracked skin between the toes
How is athlete’s foot spread
Touch
How can you stop diseases being spread
Making sure sewage is treated and disposed of properly
Adding chlorine to water to kill bacteria
Drying, freezing or refrigerating food
Pasteurising milk
Using disinfectants, antiseptics and soaps
Immunising people with vaccines
What are your body’s natural defences against microbes
Skin, mucus in the trachea and nose l, ciliated epithelial cells to sweep mucus away
What are the ways your body has to destroy microbes
A chemical in tears kill some bacteria
Acid in stomach and kills some bacteria
White blood cells that engulf microbes
Other white blood cells that make antibodies to help destroy microbes
How developed is a babies immune system
Not fully developed
How do the babies fight infection
Antibodies pass through the placenta and are found in breast milk
Once you have had a disease why can’t you get it again
Because antibodies stay in the blood
How can some diseases be cured.
Using antibiotics
What are antibiotics
Medicines that kill of bacteria
What are resistant bacteria
Bacteria that unaffected by antibiotics
What is the problem with using too many antibiotics
Using too many antibiotics leaves behind resistant bacteria
What is the problem with resistant bacteria
Makes diseases difficult to treat
