Dengue Hemorrhagic Fever has become a leading cause of hospitalization and death among children in several countries. The flavovirus, which is the source of dengue fever, have four classifications. The dengue vector- aedes aegypit along with the flavovirus, have become rampant globally. It is mostly considered endemic in many countries such as Asia and Americas.
Asia, Africa and North America are the places where the first reported epidemics of dengue fever occurred specifically in 177-1780. Based on the fact that the occurrences of outbreaks on the three continents are concurrent, we can already assume that these viruses (4 types of flavovirus) including their mosquito vector already have a global circulation in the tropics for approximately 200 years. Dengue fever was considered a benign, nonfatal disease of visitors to the tropics during most of this time. Because the viruses and their mosquito vector could only be transported between population centers by sailing vessels, there were long intervals (10-40 years) between major epidemics.
After World War II, a global pandemic of dengue began in Southeast Asia and it has intensified during the last 15 years. DHF has emerged in the Pacific region and the Americas while the geographic distribution of dengue viruses and their mosquito vectors has expanded. Epidemics that are caused by multiple serotypes or what we call hyperendemicity also became more frequent.
Dengue Hemorrhagic Fever was first renowned in the Philippines and Thailand during which there was a dengue epidemic back in 1950s. By now, the number of epidemic DHF has increased more than fourfold and continues to rise since 1970s where nine countries has experienced the epidemic. At the moment, the Americas and Asia have increased dengue epidemics caused mainly by emerging DHF cases. Both countries are also considered dengue endemic with all four dengue viruses.
As we consider the history of dengue, we realize that it has become very fatal and global. The idea is to prevent the disease from occurring by destroying the breeding sites of mosquitoes. Also, when one becomes infected, it is important to report immediately to the nearest clinic so that prompt management of the disease will be given. The earlier the management, the better will be the prognosis. We’ll not wait for things to get worse especially when you consider the possibility of dengue or malaria as you survey the environment. This fact is true to all diseases. It is really important to think ahead and think critically of the situation that’ll arise in everyday life. That way, there’ll be lesser problems if not none at all. Aside from these facts, environmental sanitation is very vital not only in dengue but also in other types of infections.
Currently, there is no vaccine for dengue fever although research is still ongoing at these times. The dengue vector usually bites at daytime- from dawn to dusk unlike the malaria vector which bites at nighttime. Regardless of the time, you should focus your action in vector control. It is the only available method in preventing you or your child from catching the disease.