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Dengue Vaccine: The Current Status.

M S Mustafa¹, V K Agrawal²

¹DADH, HQ 6 Mtn Div, C/o 56 APO, Pin - 908406.

Medical Journal, Armed Forces India

|July 14, 2016

Summary

Developing effective dengue vaccines is crucial as two-fifths of the world

Area of Science:

Virology
Immunology
Public Health

Background:

Dengue fever is a significant and re-emerging global health threat, with a substantial portion of the world's population at risk.
Current limitations in antiviral treatments and the ineffectiveness of vector control programs highlight the urgent need for vaccination strategies.
An ideal dengue vaccine must confer long-lasting immunity against all four dengue virus serotypes.

Purpose of the Study:

To review current dengue vaccine candidates and their developmental stages.
To assess the potential of various vaccine platforms, including live attenuated, chimeric, and recombinant approaches.
To identify challenges in achieving a balanced immune response against all dengue serotypes.

Main Methods:

Review of existing literature on dengue vaccine development.

Keywords:

Candidate vaccines Clinical trials Dengue fever

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Analysis of different vaccine platforms: live attenuated tetravalent vaccines, intertypic chimeric vaccines (dengue virus vectors and Yellow Fever 17D vector), and recombinant vaccines (flavivirus and non-flavivirus vectors).

Examination of ongoing human and animal trials for candidate vaccines.

Main Results:

Several vaccine candidates, including tetravalent live attenuated, intertypic chimeric, and chimeric vaccines, are undergoing human trials.
Recombinant DNA vaccines utilizing flavivirus and non-flavivirus vectors are in animal trials.
Emerging data suggests that current tetravalent formulations may induce an imbalanced immune response.

Conclusions:

Vaccination remains the most promising strategy for dengue prevention due to the lack of effective antiviral drugs and challenges in vector control.
Ongoing research focuses on optimizing tetravalent vaccine formulations to ensure a balanced immune response against all dengue serotypes.
Continued development of diverse vaccine platforms is essential to combat the global dengue burden.