■ safety goggles

■ disposable gloves

■ dropper bottle of unknown solution

■ indophenol indicator


1. What are the five main ways that human diseases can be transmitted?

2. How does a cold or flu spread from person to person?

3. How does the body fight invading viruses?

4. Why has the transmission of HIV become a great concern worldwide?

5. Why is a person with AIDS less able to combat infections than a person who does not have AIDS?

i7AniiA Simulating the Transmission of a Disease

1. This investigation will involve the class in a simulation of disease transmission. After the simulation, you will try to identify the original infected person in the closed class population.

2. In your lab report, construct a data table similar to Table A.

3. ^^ ^ CAUTION Put on a lab apron, ^r ^r goggles, and disposable gloves.

4. CAUTION If you get any solution used in this investigation on your skin or clothing, wash it off at the sink while calling to your


Round number

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