Match the concept with its correct definition:

1. Common Source Spread
2. Point Source Spread
3. Continuous Common Source Spread
4. Intermittent Common Source Spread
5. Propagated Spread

a. An example would be people getting infections from bagged lettuce from a specific manufacturer.
b. This would be a disease passed from person to person, and is often longer in duration and may have more than one peak.
c. An example of would be the source of London water taken downstream of the city, which was always being contaminated with sewage from upstream.
d. An example is a single contaminated potato salad at a group picnic.
e. This might be seen in an area that has an outbreak of disease every time it rains and the storm drains overflow the sewers.