If the candidate does not pass the certification examination, he or she may register to re-take the certification examination online at a price of $395, a discount of $100 from the regular examination rate.
Dengue fever is an infectious disease carried by mosquitoes and caused by any of four related dengue viruses. This disease used to be called break-bone fever because it sometimes causes severe joint and muscle pain that feels like bones are breaking.Health experts have known about dengue fever for more than 200 years.engue fever is an infectious disease carried by mosquitoes and caused by any of four related dengue viruses. This disease used to be called break-bone fever because it sometimes causes severe joint and muscle pain that feels like bones are breaking.
Dengue fever is a threat to people in more than 100 countries. It is a flu-like disease that produces a high fever, pain in the eyes and joint aches that can last a week. Dr. Renu Daval-Drager of the World Health Organization says some cases of what is sometimes called break bone fever can be fatal.magine a flu-like illness that causes you to feel as though all of your bones are broken. You have a high fever, a crushing headache, severe pain behind your eyes, a rash, and excruciating pain in your joints and spine. What I am describing is called dengue fever (DF), and it can be fatal.