By NewsDesk @infectiousdiseasenews
The Thailand Bureau of Epidemiology has reported 16,924 dengue fever cases this year through June 8, including 11 deaths.
According to Dr Suwanchai Wattanayingjaroenchai, director-general of the Department of Disease Control (DDC), one third of those have been children aged 5-14, four of whom have died.
Provinces with the highest rates of cases include Rayong, Chaiyaphum, Khon Kaen, Nakhon Ratchasima and Loei.
“The rainy season, which creates puddles of water that serve as breeding grounds for mosquitos, is the main factor that is boosting the outbreak. I would like to ask people to look out for unused containers that might become breeding grounds in households,” said Dr Suwanchai.
Dengue is a viral infection transmitted by the bite of an infected mosquito. There are four closely related but antigenically different serotypes of the virus that can cause dengue (DEN1, DEN 2, DEN 3, DEN 4).
Dengue Fever (DF) – marked by an onset of sudden high fever, severe headache, pain behind the eyes, and pain in muscles and joints. Some may also have a rash and varying degree of bleeding from various parts of the body (including nose, mouth and gums or skin bruising).Dengue has a wide spectrum of infection outcome (asymptomatic to symptomatic). Symptomatic illness can vary from dengue fever (DF) to the more serious dengue hemorrhagic fever (DHF).
Dengue Hemorrhagic Fever (DHF) – is a more severe form, seen only in a small proportion of those infected. DHF is a stereotypic illness characterized by 3 phases; febrile phase with high continuous fever usually lasting for less than 7 days; critical phase (plasma leaking) lasting 1-2 days usually apparent when fever comes down, leading to shock if not detected and treated early; convalescence phase lasting 2-5 days with improvement of appetite, bradycardia (slow heart rate), convalescent rash (white patches in red background), often accompanied by generalized itching (more intense in palms and soles), and diuresis (increase urine output).
Dengue Shock Syndrome (DSS) — Shock syndrome is a dangerous complication of dengue infection and is associated with high mortality. Severe dengue occurs as a result of secondary infection with a different virus serotype. Increased vascular permeability, together with myocardial dysfunction and dehydration, contribute to the development of shock, with resultant multiorgan failure.
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