About Dengue 

• Dengue is a mosquito-borne viral infection.
• Dengue virus is transmitted by female mosquitoes mainly of the species Aedes aegypti and, to a lesser extent, Ae. albopictus. 
• These mosquitoes are also vectors of chikungunya, yellow fever and Zika viruses. 
• Dengue is found in tropical and sub-tropical climates worldwide, mostly in urban and semi-urban areas.
• The virus responsible for causing dengue is called dengue virus (DENV) which belongs to the Flaviviridae family.
• There are four DENV serotypes, meaning that it is possible to be infected four times.

Signs and symptoms

• Dengue is a severe, flu-like illness that affects infants, young children and adults, but seldom causes death. 
• Symptoms usually last for 2–7 days, after an incubation period of 4–10 days after the bite from an infected mosquito. 

Treatment

• There is no specific treatment for dengue fever.
• Fever reducers and pain killers can be taken to control the symptoms of muscle aches and pains, and fever.

Vaccination against dengue

• The first dengue vaccine, Dengvaxia (CYD-TDV) was licensed in 2015 and has now been approved by regulatory authorities in ~20 countries.

Why in news?

• Recently, Manipur health officials were worried by the increasing dengue infection at the border town Moreh, reporting 80 confirmed cases in the border villages.

Reference:

1. https://www.who.int/news-room/fact-sheets/detail/dengue-and-severe-dengue