The Infection Cycle Flashcards
Why does boiling water stop the spread of typhoid?
Because the bacteria will go away and then the typhoid is broken down, so then the disease will be gone.
How do you catch a cold?
When someone’s saliva particles travel towards you and you breath it in, you catch a cold. The particles have flu/virus particles.
Which two diseases are likely to cause problems when an earthquake or hurricane hits an area?
Smallpox and cholera
Why douse covering your mouth when you sneeze help prevent colds from spreading?
By stopping particles coming out of your mouth and into the air.
For each way in which microbes are spread, suggest a way of controlling the disease.
Air- sneezing or coughing into a tissue
Water- boil water to get rid of bacteria
Food- put food in the fridge
Contact- wash hands thoroughly
Animals- wear cream before touching an animal
Suggest why it is important to stay at home when you have the flu?
It reduces the chance of others having flu.
What is the difference between being infected and showing symptoms?
Infected is when the pathogens enter the body and symptoms are when signs of the infection starts to show.
Explain why it is possible for an infected person who has no symptoms to spread a disease.
The viruses can spread to other people to cause them to have the same infection.
Explain how hay fever symptoms are caused using your knowledge of the infection cycle.
Your body treats an allergy as an illness.
Explain why people sneeze when they have hay fever or common cold.
Because the pollen or viruses make them sneeze.
