Name the disease that fits each clue. Rhinoviruses infect the nose and the respiratory passage, and…
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
Name the disease that fits each clue.
- Rhinoviruses infect the nose and the respiratory passage, and the lungs stay free.
- A bacterium enters the small intestine and then the blood, and a Widal test is done.
- Bacteria infect the alveoli, which fill with fluid. The lips of a severe patient may turn bluish.
- The female Aedes mosquito carries the virus. The patient has pain behind the eyes.
Need a reminder? The key ideaShow
A pathogen is an organism or virus that causes disease. Typhoid is caused by Salmonella typhi, pneumonia by Streptococcus pneumoniae and Haemophilus influenzae, and the common cold by rhinoviruses. Bacteria multiply by dividing in two, so after doublings the number is .
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.
Step 1. (a) The common cold.
Step 2. (b) Typhoid, caused by Salmonella typhi.
Step 3. (c) Pneumonia, caused by Streptococcus pneumoniae or Haemophilus influenzae.
Step 4. (d) Dengue. Chikungunya is also carried by Aedes, but pain behind the eyes belongs to dengue.
Answer: (a) common cold; (b) typhoid; (c) pneumonia; (d) dengue.
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