⦁ WHAT IS DENGUE FEVER?
Dengue fever is an infectious disease transmitted through mosquitos,causing any of the four related dengue viruses.It is also called BREAK BONE FEVER.
Dengue is one of the viral diseases transmitted through mosquito.The disease has affected all the warm parts of the world such as Pakistan,India,Srilanka,Bangladesh,Central Africa,Central America and China.
It is a disease transmitted by monkeys to them by forest dwelling mosquitos.Outbreaks in humans began when some of these mosquitos got virus from monkeys and made way to human villages where they started breeding.Hence,infected human beings carried the disease to the cities where AEDES took over to the vector.
Symptoms of dengue include
An undifferentiated fever
Dengue fever (DF)
Dengue shock syndrome (DSS)
FEVER : The temperature rises above 102 F with severe headache,pain in the eyes and joints,with nausea and vomiting.
DENGUE FEVER:It is accompanied by extensive leakage of plasma.Some cases show bleeding from nose,gums and rashes on skin
DENGUE SHOCK SYNDROME:When a dengue patient experiences shock,he has dengue shock syndrome.
⦁ HOW IT IS NOTICED IN A PATIENT
Complete Blood Count (CBC) showing total number of RBC’s,WBC’s and platelets per unit volume of blood is the basic diagonistic test.
⦁ TYPES OF DENGUE VIRUSES
Dengue fever is caused by one of the four types of dengue viruses,DEN-1,DEN-2,DEN-3,DEN-4.These are also called serotypes.
⦁ DENGUE VECTOR
The carrier of the dengue virus is the AEDES mosquito.It is black and dark brown in colourwith white spots on the body and legs and has shiny wings.Both male and female feed on the plant nectar.But only female has the ability to bite humans and transmit the virus.The female mosquito needs to suck blood to lay eggs.
⦁ HOW TO PREVENT DENGUE VIRUS
AT PERSONAL LEVEL : People can prevent a mosquito from biting by wearing full clothes.Mosquito nets and mosquito repellents are also a great way to make the mosquitos stay away from your lawn
AT COMMUNITY LEVEL: The surroundings of a house should be kept clean.No garbage or solid waste should be allowed to collect to any place.Spraying of any insecticide/larvicide should be practiced on a regular basis.
BIOLOGICAL CONTROL : Nowadays,biological control is being favoured due to its harmless nature.Many birds prey on mosquitos.Wall lizards,geckos etc destroy a large number of mosquitos.Certain Fish in ponds are a natural predator of mosquito.