In October 2019, India confirmed Dengue cases with cases reported from across the country. Dengue is endemic in India. Transmission occurs year-round in southern areas and from April through November in northern states.

Dengue is a viral infection transmitted through the bite of infected female mosquitoes that feed both indoors and outdoors during the daytime (from dawn to dusk). These mosquitoes thrive in areas with standing water, including puddles, water tanks, containers and old tires. Lack of reliable sanitation and regular garbage collection also contribute to the spread of the mosquitoes.

SYMPTOMS

In some cases, Dengue infection is asymptomatic – persons do not exhibit symptoms. Those with symptoms get ill between 4 to 7 days after the bite. The infection is characterized by flu-like symptoms, which include a sudden high fever coming in separate waves, pain behind the eyes, muscle, joint, and bone pain, severe headache, and a skin rash with many spots. The illness may progress to Dengue Hemorrhagic Fever (DHF). Symptoms include severe abdominal pain, vomiting, diarrhea, convulsions, bruising, and uncontrolled bleeding. High fever can last from 2 to 7 days. Complications can lead to circulatory system failure and shock, and can be fatal (also known as Dengue Shock Syndrome).

PREVENTION

Use a repellent containing 20 to 30 percent DEET or 20 percent Picaridin on exposed skin. Re-apply according to manufacturer’s directions.
Wear neutral-coloured (beige, light grey) clothing. If possible, wear longsleeved, breathable garments.
If available, pre-soak or spray outer layer clothing and gear with permethrin.
Get rid of water containers around dwellings and ensure that door and window screens work properly.