Wednesday, December 10, 2025

Monitoring Dengue: An Interview With Alisa Aliaga-Samanez


The fast unfold of Dengue may result in a worldwide pandemic, and so the geographical extent of this unfold must be assessed and predicted. There are additionally causes to counsel that transmission of Dengue from non-human primates in tropical forest cycles is being underestimated.

Alisa Aliaga-Samanez sitting by the computer

Alisa Aliaga-Samanez

 

Precisely one month in the past, on June seventh, PLOS Uncared for Tropical Ailments revealed a analysis article Worldwide dynamic biogeography of zoonotic and anthroponotic Dengue. The research is the primary high-resolution evaluation of how the danger of Dengue transmission has been altering geographically for the reason that late 20th century, indicating the virus (DENV) has been making a house in beforehand low-risk areas, doubtlessly attributable to international warming and deforestation. 

We spoke with the corresponding writer Alisa Aliaga-Samanez, who labored alongside Marina Cobos-Mayo, Raimundo Actual, Marina Segura, David Romero, Julia E. Fa, and Jesús Olivero, to study extra concerning the significance of this research and her expertise working with GIDEON knowledge. 

 

How did you discover out about GIDEON?  

We obtained to know GIDEON due to an article revealed in PNAS by Kris A. Murray and colleagues entitled “World biogeography of human infectious illnesses.”

 

What have been the explanations behind selecting the GIDEON database as one in every of your knowledge sources?

We all know that GIDEON is without doubt one of the most full knowledge sources worldwide on zoonoses, so we needed to make use of it to construct our database. For that purpose, the venture the place I work on the College of Malaga funded our entry to GIDEON.

 

What’s the significance of biogeography research like this one to public well being administration?  

Biogeographical research, by means of modeling, utilized to pathogens, permit us to grasp the distribution of infectious illnesses. The incidence of illness instances is said to social elements but in addition to environmental variables that decide the diploma to which sure environments favor the incidence of illness, even the place it has not been recorded. Due to the instrument we use in our research, we’re capable of suggest totally different administration methods relying on which elements favor the danger of transmission in several areas of the world. We took into consideration three potential biogeographical situations associated to Dengue transmission danger: (1) zones with favorable situations for viruses and vectors, (2) favorable situations for virus solely, and (3) favorable situations for vectors solely. In addition to, our biogeographical method helped us to investigate the extent of the areas the place non-human primates could possibly be concerned in sylvatic Dengue cycles.

 

Do you imagine the dangers of the Dengue pandemic are exacerbated by international warming?  

We expect international warming could also be one of many elements that could possibly be favoring vectors to adapt to new environments. A research revealed by Messina and colleagues in 2019 concluded that the World’s inhabitants susceptible to Dengue may expertise an nearly 60% improve by 2080. As well as, they instructed that outbreaks may attain areas in continents akin to Australia, Argentina, Japan, jap China, and southern Europe.

Melting iceMelting ice

Picture by William Bossen on Unsplash

 

In your expertise, how efficient research akin to yours at influencing change in authorities and well being insurance policies, and do you suppose work like this can be taken extra severely following the COVID-19 pandemic?  

We’ve got seen that governmental our bodies akin to WHO or CDC depend on scientific research to handle danger areas, however we really feel that this work is being restricted in Africa, for instance. However, some illnesses have already got a vaccine accessible, akin to yellow fever, however its utility won’t be effectively managed in some African international locations, the place giant outbreaks happen. Within the case of Dengue, a vaccine has already been developed, however it’s only licensed for individuals aged 9-45 years in some international locations. The WHO recommends that the vaccine ought to solely be administered to individuals with confirmed earlier Dengue virus an infection. As we present in our paper, Dengue is at present spreading along with its vectors. The COVID-19 pandemic ought to serve to reveal that international pandemics are potential and, so, have to be prevented.

 

What worth did getting access to international spatio-temporal knowledge add to your research?  

GIDEON helped us to get fast entry to the accessible data on the illness. This allowed us to construct our databases in a short while and to validate our fashions with latest instances so as to assess the reliability of the instrument we use and to foretell new areas favorable for brand spanking new Dengue instances.

 

What are your ideas relating to knowledge availability on sylvatic transmitted Dengue?  

Many of the accessible knowledge on human instances don’t differentiate whether or not they have been brought on by sylvatic or city transmission. Some analysis research in sure native areas could possibly decide this, however globally there isn’t a such data. Our biogeographic outputs associated to Africa and Asia are per the scarce data accessible and supply the context by which on-the-ground prospections on sylvatic Dengue needs to be addressed. That is particularly vital in South America, the place sylvatic Dengue has not been detected but (though the presence of sylvatic Yellow Fever and different proof are beginning to counsel its existence).

Aedes aegypti Mosquito. Close up a Mosquito Mosquito on leaf,Mosquito Vector-borne diseases,Chikungunya.Dengue fever.Rift Valley fever.Yellow fever.Zika virus.Aedes aegypti Mosquito. Close up a Mosquito Mosquito on leaf,Mosquito Vector-borne diseases,Chikungunya.Dengue fever.Rift Valley fever.Yellow fever.Zika virus.

Aedes aegypti mosquito, the vector of Dengue

 

What areas do you suppose GIDEON may enhance to make our knowledge extra helpful to you sooner or later?  

We admire the good work GIDEON does in gathering knowledge globally. We discovered the brand new GIDEON interface very helpful. Maybe it will make it simpler sooner or later, whether it is potential, to differentiate between imported and autochthonous instances inside the database. It’s true that in lots of instances the database does point out it however not for all international locations.

 

About Alisa:

Alisa Aliaga-Samanez has a level in Biology from the Federico Villarreal College (Peru) and a Grasp’s diploma in Biodiversity and Atmosphere from the College of Malaga (Spain). Presently, she is working on the Animal Biology Division of the College of Malaga, being a part of the Biogeography, Range and Conservation Group,  growing her Ph.D. thesis. The thesis is targeted on the research of primate biogeography, utilized to conservation and human well being. She is at present mapping vector-borne zoonotic illnesses by means of international distribution modeling. For this reason she is ready to observe dengue and dengue virus serotype.

Aliaga makes use of high-resolution international maps and essentially the most up-to-date databases to investigate geographical modifications within the danger of zoonotic illness transmission. As well as, in these analyses, she considers the biogeographical contribution of primates in growing the danger of transmission. She seeks to find out the potential pure vary of endemic and rising zoonotic illnesses on the planet, with the intention of suggesting particular administration methods in line with the spatial distribution of danger elements.

Click on right here to learn the open-access article: Worldwide dynamic biogeography of zoonotic and anthroponotic Dengue 

 

The GIDEON Distinction in Monitoring Virus Transmission

GIDEON is without doubt one of the most well-known and complete international databases for infectious illnesses. Knowledge is refreshed every day, and the GIDEON API permits medical professionals and researchers entry to a steady stream of information. Whether or not your analysis includes quantifying knowledge, studying about particular microbes, or testing out differential analysis instruments– GIDEON has you coated with a program that has met requirements for accessibility excellence. It’s also possible to overview our eBooks on Suppurative Intracranial Infections, Trichuriasis, Tropical Pores and skin Ulcers, and extra. Or take a look at our international standing updates on international locations like Suriname, Togo,  Ukraine, and extra!

 

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