Dengue Fever

Group 9: Tracy, Sarah ,Kara, Maggie

登革熱

Route of transmission Dengue virus is transmitted to human by mos

quitoes, especially Aedes aegypti 埃及伊蚊 and Aedes albopictu 白紋伊蚊 .

Transmission By Vectors

Aedes aegypti 埃及伊蚊 →

Aedes albopictu← 白紋伊蚊

Be Careful!!

Route of transmission This is a day-biting species 日間叮人 with inc

reased biting activities for 2 hours after sunrise and several hours before sunset.

Patients are usually infective for mosquitoes from shortly before to the end of the febrile period 剛發燒前至退燒期 , an average of about 6-7 days. It cannot be directly transmitted from person to person.

Route of transmission

General Symptoms Dengue fever is an acute 急性 mosquit

o-borne infection caused by the dengue viruses

The dengue viruses encompass four different serotypes 血清型 , each of which can lead to dengue fever and dengue haemorrhagic fever 登革出血熱

General Symptoms Dengue fever

-sudden onset of high fever for 3-5days

-severe headache

-pain behind the eyes 後眼窩痛 -muscle and joint pains

-anorexia

General Symptoms Dengue fever -nausea 噁心 -diarrhea 腹瀉 -vomiting 嘔吐 -rash 出疹 (bright red rash appears first on the

lower limbs and the chest or even the whole body)

-may be extremely tired,depressed

General Symptoms

General Symptoms Dengue fever

-the incubation is 3-14 day

-if the situation is worsen,the patients would bleed出

血 ,shock 休克 and even cause death

Dealth \0/My goodness!!

General Symptoms

-it is easier to get Dengue fever if you go to the Latin America and Southeast Asian countries

-spreads mainly in the rainy season and at the end of the rainy season

General Treatments in HK

There is no specific treatment for dengue fever or dengue haemorrhagic fever

seek medical assistance immediately, especially with bleeding signs

High fever should be treated by sponging溫 水抹身 and the appropriate use of paracetam

ol 退燒藥 Do not take aspirin because they can lead to

bleeding and cause stomach irritation

Poor boy…>/\<How to prevent

Preventive measures

Personal protection measures ~Wear long-sleeved shirts and trousers   ~Avoid staying in scrubby 多樹的 areas ~Use mosquito screens or nets when the

room is not air-conditioned~Use insect repellents 驅蚊劑 containing DEET 避蚊胺 on exposed skin

~If travelling in endemic rural areas, carry a portable bed-net and apply permethrin 氯菊酯噴 on it as well as to clothes.  

Mosquito control (larval control and adult mosquito control)

~Periodic draining or removal of artificial containers to reduce the breeding grounds for mosquitos

~Keep the water stores clean and closed. ~Use of larvicides 殺幼蟲劑 or mosquito larvae-eatin

g fish in waters that cannot be drained.  ~Fill tree holes with sand or cement 水泥 and plug th

e tops of bamboo fences.        

Preventive measures Mosquito control (larval control and adult mos

quito control)

~Using insect repellent, mosquito traps or mosquito nets to prevent mosquito bites

TO AVOID GETTING DENGUE YOU MUST AVOID BEING BITTEN!!!!