PAHO urges region to prepare for dengue outbreaks

PAHO urges region to prepare for dengue outbreaks

Thursday, February 28, 2019

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WASHINGTON, United States (CMC) — The Pan American Health Organisation (PAHO) has called for countries in the Caribbean and Latin America to prepare for a timely response to possible outbreaks of the mosquito borne dengue fever.

“Dengue is a viral infection transmitted by mosquitoes that is widespread in the Americas,” said Dr Marcos Espinal, Director of the Department of Communicable Diseases and Environmental Determinants of Health in a statement on Thursday.

“Its complexity has been increasing over the years due to several factors such as unplanned urban growth, water and sanitation problems, climate change, and, in some countries, the simultaneous circulation of all four types of dengue, which increases the risk of serious cases and outbreaks,” he added.

According to PAHO’s latest epidemiological update on dengue, published last week, 560,586 cases of dengue were reported in the Region of the Americas last year, including 3,535 severe cases of dengue and 336 deaths.

During the first six weeks of 2019, almost 100,000 cases of dengue were reported, including 632 cases of severe dengue and 28 deaths.

Dengue is endemic in the region and, since its reintroduction in the 1980s, has caused cyclical outbreaks and epidemics every three to five years.

The first dengue epidemic with over one million cases occurred in the Region in 2010. Three years later, in 2013, the first epidemic with more than two million cases occurred. At the beginning of 2019, there was an increase in cases compared to the same period of 2018.

According to Espinal the timely diagnosis of the disease has become more complex with the arrival of two new arboviruses: The Chikungunya virus in 2013 and the Zika virus in 2015, which present similar symptomatology.

He noted that despite the introduction of these new arboviruses, dengue is the one that presents the highest number of diseases.

“Dengue is also a more lethal arbovirus than chikungunya and Zika, but its treatment is relatively simple, inexpensive and very effective in saving lives. “The key is recognizing the warning signs early and providing the care required to prevent it progressing to more serious forms,” said Jos Luis San Martin, PAHO’s regional advisor on dengue. The regional health body says if a physician is not sure whether a patient is presenting with dengue, chikungunya or Zika – the clinical management and treatment of dengue should begin immediately, without waiting for a laboratory diagnosis.

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