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A Murine Model of Dengue Virus-induced Acute Viral Encephalitis-like Disease
Published on: April 28, 2019
[Clinical and epidemiological aspects of the dengue epidemic in Recife, PE, 2002]
Demetrius Montenegro1, Heloisa Ramos Lacerda, Tereza Maciel Lira
1Diretoria de Vigilância Epidemiológica, Secretaria Municipal de Saúde, Recife, PE.
Abstract:
This paper shows data regarding dengue and hemorrhagic fever of the dengue epidemic in Recife in 2002 and the clinical, laboratorial and necropsy results from the 14 patients who died that year. The serotype Den-3 was detected in 76.3% of cases. The majority of deaths occurred among men, over 20 years old, on the 11th day of disease, attended in the private hospitals. The average values of the hematocrit and platelets were 40.7% and 56,313 p/mm3, respectively. Hepatitis, with high levels of transaminases, occurred in the majority of patients, who generally were anicteric. Of the fourteen deaths, 13 received laboratorial confirmation of the infection. In eight cases death occurred due to hemorrhagic phenomena, however, in the other 6 cases significant bleeding was not identified. Vascular collapse (shock) was present in 12 (85.7%) cases, with or without the association of major bleeding, and was the most important cause of death.
Insights
This study on the 2002 Recife dengue epidemic found Dengue serotype 3 (Den-3) predominated. Vascular collapse (shock) was the primary cause of death in most fatal cases, often without major bleeding.
Area of Science:
- Virology
- Epidemiology
- Pathology
Context:
- The 2002 dengue epidemic in Recife, Brazil, resulted in significant mortality.
- Understanding the clinical and pathological features of fatal dengue cases is crucial for public health interventions.
Purpose:
- To analyze the clinical, laboratorial, and necropsy findings of 14 patients who died during the 2002 dengue epidemic in Recife.
- To identify the predominant dengue serotype and the main causes of death.
Summary:
- Dengue serotype 3 (Den-3) was detected in 76.3% of fatal cases.
- Deaths predominantly occurred in men over 20 years old, around the 11th day of illness, often in private hospitals.
- Vascular collapse (shock) was observed in 85.7% of cases and identified as the main cause of death, irrespective of major bleeding. Hepatitis with elevated transaminases was common, usually without jaundice.
- Average hematocrit was 40.7% and platelet count was 56,313 p/mm3.
Impact:
- Findings highlight vascular collapse as a critical factor in dengue mortality, emphasizing the need for early shock management strategies.
- The study provides valuable data for refining clinical guidelines and public health responses to severe dengue hemorrhagic fever.
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