| Minimum Calculated Ro | Maximum Calculated Ro | |
|---|---|---|
| Measles | 12 | 18 |
| Pertussis | 12 | 17 |
| Diptheria | 6 | 7 |
| Rubella | 6 | 7 |
| Smallpox | 5 | 7 |
| Mumps | 4 | 7 |
| Ebola | 1.5 | 2.5 |
Ro represents number of people an infected person will likely infect
Sources:
practice.sph.umich.edu, currents.plos.org
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The Ro, or basic reproduction number, of a disease represents how many people an infected person will likely transmit the disease to. With the Ro already being so low in the underdeveloped countries of Africa, the U.S. has little to fear given its much better healthcare facilities and a better-informed public.