By NewsDesk @infectiousdiseasenews
In an update on the dengue situation in Brazil, officials in the state of Paraná reported 157 deaths and 217,891 confirmed cases of dengue since July 2019, when the current epidemiological period began.
According to the biweekly bulletin of the State Department of Health (SESA) today, 243 cities in the state are in an epidemic situation, while 30 cities are on alert for this disease.
The municipalities with the highest number of suspected cases were Londrina: 51,974, Foz do Iguaçu: 25,638 and Maringa: 16,955.
According to the secretariat, prevention and control of dengue must be maintained by the population even in the face of the Covid-19 pandemic and the arrival of winter. Sesa noted that around 90% of breeding sites were in households.
This year, Brazil has recorded 1,243,188 total cases of dengue, including 437 deaths.
Dengue fever is a viral infection transmitted by the bite of an infected mosquito. There are four closely related but distinct antigenic serotypes of the virus that can cause dengue fever (DEN1, DEN 2, DEN 3, DEN 4).
Dengue Fever (DF) – characterized by a sudden onset of high fever, severe headaches, pain behind the eyes, and pain in muscles and joints. Some may also experience rashes and varying degrees of bleeding from various parts of the body (including the nose, mouth and gums or skin bruises). Dengue has a broad spectrum of infection results (asymptomatic to symptomatic). Symptomatic diseases can vary from dengue fever (DF) to the more serious dengue hemorrhagic fever (DHF).
Dengue Hemorrhagic Fever (DHF) – is a more severe form, only seen in a small proportion of those infected. DHF is a stereotypical disease characterized by 3 phases; the phase of fever with a high continuous fever which usually lasts for less than 7 days; the critical phase (leaky plasma) that lasts 1-2 days is usually seen when the fever goes down, which leads to shock if not detected and treated early; recovery phase lasts 2-5 days with increased appetite, bradycardia (slow heart rate), healed rash (white patches on a red background), often accompanied by general itching (more intense on the palms and soles), and diuresis (increased output urine).
Dengue Shock Syndrome (DSS) – Shock syndrome is a dangerous complication of dengue infection and is associated with a high mortality rate. Severe DHF occurs due to secondary infection with a different virus serotype. Increased vascular permeability, together with myocardial dysfunction and dehydration, contribute to the development of shock, with multiorgan failure occurring.
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