Background
Surveillance
Strengths & Weaknesses
Guiding Principals
100

Dengue fever is a virus infection that can cause severe disability, especially in children, and is spread by this type of mosquito 

What is Aedes Aegypti

100

This will be needed for informed decision making regarding vaccine introduction, however there is a lack of it

What is accurate burden of disease data

100

During outbreaks the public usually demands this type of prevention technique which is unlikely to be effective because it will not reach the mosquitoes resting and feeding inside of homes

What is pesticide spraying

100

Requiring timely collection and high-quality samples, specificity of surveillance programs are dependent upon this 

What is laboratory diagnosis 

200

Dengue experts were invited from around the world to share opinions, review reports, and to discuss this important issue

What is Dengue Surveillance

200

Because ensuring adequate surveillance requires participation from several disciplines, experts presented on topics of surveillance, epidemiology, entomology, and this 

What is virology

200

A common perception among meeting attendees was that this issue was more politically important than prevention

What is disease control

200

Laboratories should identify viruses by reverse transcriptase-polymerase chain reaction testing (RT=PCR) and this 

What is virus isolation

300

Caused by one of four serotypes, dengue fever produces a spectrum of clinical illness that ranges from an influenza-like illness to a fatal shock syndrome. Most patients that progress to shock first develop a more serious form of the infection called what 

What is Dengue Hemorrhagic Fever

300

The core functions of a comprehensive surveillance system are detection, reporting, investigation analysis, confirmation, interpretation, and this 

What is response

300

This type of surveillance is underutilized or in some countries completely lacking: It's importance is emphasized by the fact that large outbreaks tend to follow changes or reintroduction of serotypes 

What is virological surveillance

300

Attendees declared aggregate level reporting should occur at least this often during peak infection seasons 

What is weekly

400

Dengue prevention is limited vector control and treatment is limited to supportive care to avoid shock. To address the need for dengue prevention, this is in the making 

What is Dengue vaccine

400

WHO published new guidelines with major changes in dengue case classifications during this year 

What is 2009

400

Along with the design of the surveillance system causing under-detection and under-reporting of dengue, this issue often contributes to why prevention can be so difficult 

What is lack of funding

400

Case reporting should include incidence rates of dengue fever, dengue hemorrhagic fever, and dengue shock syndrome, with hospitalization and mortality rates stratified by 

What is by age and gender

500

It is estimated that 3.6 billion people in 124 countries are at-risk for infection and this many are infected each year 

What is 500 million people

500

The incubation period is one week following the bite of an infectious mosquito and several days pass before symptoms set in. This type of surveillance will help to detect dengue earlier than inpatient facilities, potentially allowing time for more public health action 

What is outpatient clinical-based surveillance

500

Laboratory confirmation of suspected cases should always be sought, except during this 

What is an outbreak

500

This kind of data can be used to predict future dengue outbreaks and evaluate impact of control interventions 

What is surveillance data