INTRODUCTION TO IMMUNOLOGY Name: Hadia Farooq , Rimsha Mazhar Reg no: BBT211010, BBT211001 Date: 14 January 2022 Assignment: 04 Section no: 02

INTRODUCTION TO IMMUNOLOGY Name: Hadia Farooq , Rimsha Mazhar Reg no: BBT211010, BBT211001 Date: 14 January 2022 Assignment: 04 Section no: 02.

Introduction:. Dengue is a highly endemic infectious disease of the tropical countries and is rapidly becoming a global burden. It is caused by any of the 4 types of dengue virus and is transmitted within humans through female Aedes mosquitoes. The dengue virus is a microscopic structure that can only replicate inside a host organism ..

Causes of Dengue Virus. Two ways of transmitting of virus: When a mosquito bites a person infected with a dengue virus, the virus enters the mosquito. when the infected mosquito bites another person, the virus enters that person's bloodstream and causes an infection. After virus incubation for 4–10 days, an infected mosquito is capable of transmitting the virus for the rest of its life..

Symptoms:. Many people experience no signs or symptoms of a dengue infection. When symptoms do occur, they may be mistaken for other illnesses such as the flu and usually begin four to 10 days after you are bitten by an infected mosquito. Severe dengue happens when your blood vessels become damaged and leaky. The number of clot-forming cells (platelets) in your bloodstream drops. This can lead to shock, internal bleeding, organ failure and even death..

Symptoms :. Dengue fever causes a high fever 104 F (40 C) and any of the following signs and symptoms: Headache Muscle, bone or joint pain Nausea Vomiting Pain behind the eyes Swollen glands Rash.

Graphically:. Std Dev = 2.48 Mean = 6 N = 110 18 16 14 12 10 8 6 4 2 15-19 110 20-24 25-29 30-34 35-39 40-44 45-49 50-54 55-59 60-65 Age of the Patient.

Aim:. The main aim is to follow the preventive measures, in order to reduce the rate of mosquitos that spread dengue. Objectives : Vaccine: In areas of the world where dengue fever is common, one dengue fever vaccine ( Dengvaxia ) is approved for people ages 9 to 45 who have already had dengue fever at least once. The vaccine is given in three doses over the course of 12 months . Stay in air-conditioned or well-screened housing. Wear protective clothing..

Objectives:. Use mosquito repellent. Reduce mosquito habitat. Ensure that window and door screens are secure and that any holes are repaired. Use mosquito nets if sleeping areas aren’t screened. Become a part of any campaign..

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