|
|
|
front |1 |2 |3 |4 |5 |6 |7 |8 |9 |10 |11 |12 |13 |14 |15 |16 |17 |18 |19 |20 |21 |22 |review |
 |
The most
heartening evidence of humankind�s ability to triumph over infectious deceases is the
eradication of smallpox. Disease surveillance was key to the triumph over smallpox. Continued surveillance is essential for preventing future outbreaks. |