The presence of cholera in drinking water

Lectures:

15

16

17

Note: Analyze and answer the questions below.

1. If you were worried about the presence of cholera in drinking water what laboratory test would you run? Why? Is this test specific to the microbe that causes cholera? Explain.
2. What is the difference between common coliform bacteria found in contaminated drinking water and E. coli strain 157:H7?
3. Tell me FIVE important things about the organism that causes typhoid fever in contaminated drinking water. You can use the internet to complete your list of FIVE things. Defend your answer.
4. Tell me FIVE important things about the organism that causes cholera in contaminated drinking water. You can use the internet to complete your list of FIVE things. Defend your answer.
5. Tell me FIVE important things about the organism that causes dysentery in contaminated drinking water. You can use the internet to complete your list of FIVE things. Defend your answer.
6. The Center for Disease Control (CDC) estimates that over 900,000 Americans become sick each year from drinking water contaminated with pathogenic bacteria. Do you believe that the real number of bacteria-induced sicknesses is high, lower or at the CDC estimated number? Defend your answer.
7. Traditionally the major complaints about water parks are based on child safety considerations about drowning and/or falling off slides. Argue that water-borne diseases in these parks may be the greater risk for children.
8. Do some Internet research about Leptospira, which causes leptospirosis. Tell me what the disease is, how do humans get it, what state in the USA is it most likely to be found, and if it causes human fatalities.