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12 November 2026, London – Haleon, a global leader in consumer health, today announces the launch of its new Fever Forecaster, an AI-powered predictive tool designed to forecast potential dengue outbreaks up to six weeks in advance.
Launching first in Colombia, supported by the local Dolex brand,3 the tool will provide information on potential dengue outbreaks and guidance to healthcare professionals,4 helping them prepare for periods of increased dengue risk and provide timely support to the communities they serve.
Dengue is a growing public health challenge, with around half of the world’s population now at risk.5 In 2024, Colombia was among the countries most heavily affected, reporting more than 320,000 cases.6 Research shows early detection and timely access to appropriate symptomatic management can help reduce the risk of severe dengue and support better patient outcomes.7
Fever Forecaster combines multiple sources of data, including satellite, weather, epidemiological and search trend data to help forecast potential outbreaks up to six weeks in advance. The tool will be available to a network of around 30,000 health professionals in affected regions, including GPs, paediatricians and pharmacists.
The tool provides information on potential dengue outbreaks together with educational guidance on prevention and symptom management. By providing earlier visibility of potential outbreaks, the tool offers healthcare professionals additional information to use alongside their own expertise and professional judgement when considering preparedness for periods of potentially higher risk and demand.8
Kathryn Swallow, OTC Category Head, Haleon, said: “At Haleon, we’re committed to delivering better everyday health to consumers, and that includes continually looking for new ways technology can help us provide timely, practical support. Our new Fever Forecaster tool, supported by Panadol, is a good example of that in action. By using AI to help identify potential dengue fever outbreaks earlier, it can give healthcare professionals more time to prepare and better support the communities they serve. It shows how trusted brands like Panadol can combine science, technology and consumer understanding to support people in the moments that matter.”
Andrés González, President of Latin America, Haleon, said: “Dengue remains one of Latin America’s most pressing public health challenges, and Colombia is a powerful place to launch this tool. With Fever Forecaster, we are combining data, technology and trusted health education to help healthcare professionals anticipate periods of increased risk and provide earlier support to the communities they serve. This is exactly how Haleon’s purpose comes to life: using science, innovation and the strength of our trusted brands to empower more people to manage their everyday health with confidence.”
From 2027, Haleon plans to expand Fever Forecaster to additional markets, including the Middle East and Africa region.
The tool can be accessed here.
Ends
Dengue is a viral infection caused by the dengue virus, which is transmitted to humans through the bite of infected mosquitoes.9 According to WHO, around half of the world’s population is now at risk of dengue, with an estimated 100 to 400 million infections occurring each year.10 Early detection and access to appropriate symptomatic management can help reduce the risk of severe dengue and support better patient outcomes.11
Fever Forecaster is an AI-powered predictive tool developed for healthcare professionals. It combines multiple data sources, including historical disease case, climate, environmental and aggregated search trend data, to generate localised risk forecasts for potential dengue outbreaks up to six weeks in advance. The tool provides information and educational guidance to support preparedness and is intended to be used alongside healthcare professionals’ own clinical expertise and professional judgement.
Fever Forecaster is launching first in Colombia in November 2026, supported by the trusted local Dolex brand, with an initial focus on dengue. Haleon plans to expand the tool to additional markets, including the Middle East and Africa region from 2027.
Fever, headaches and body aches are among the common signs of dengue,12 so recognising these symptoms and knowing when to seek appropriate medical advice can support better patient outcomes.
Panadol contains paracetamol, the recommended first-choice medicine for reducing fever and pain during dengue season.13 Drawing on Panadol’s expertise as the world’s number one pain and fever relief brand,14 Panadol is leveraging its local Dolex brand to support the launch of Fever Forecaster in Colombia.
Fever Forecaster is designed to help healthcare professionals prepare for periods of increased dengue risk by providing information on potential outbreaks and practical guidance. This can support earlier awareness and preparedness, helping them provide timely, trusted health information and guidance to the communities they serve.
By giving pharmacists earlier visibility of changing dengue risk levels, Fever Forecaster can help inform planning for periods of higher demand, such as supporting better product availability.15
Fever Forecaster combines multiple sources of data, including satellite, weather, epidemiological and search trend data, to forecast potential dengue outbreaks up to six weeks in advance. It brings these forecasts together with educational guidance to help healthcare professionals prepare for periods of increased risk.
Fever Forecaster uses a machine learning model trained on historical disease case data, alongside climate, environmental and population data and aggregated Google search trends. The case data are drawn from national public health surveillance reporting, while the other inputs come from recognised public data sources. The model draws on this defined set of datasets, rather than using internet sources or generative AI.16 It produces population-level estimates of case numbers up to six weeks ahead, helping to show where risk may be rising. These forecasts are estimates rather than certainties and are intended to support planning, not individual diagnosis or treatment.
The rise of dengue has been linked to a range of factors, including changing weather patterns, increased rainfall and the expanding geographic reach of disease-carrying mosquitoes.
The World Meteorological Organization expects the current El Niño to intensify into a very strong event,17 with research linking El Niño conditions to increased dengue risk.18
El Niño can influence temperature and rainfall patterns, which may affect the environmental conditions that shape mosquito breeding and the spread of climate-sensitive diseases such as dengue.
In regions such as Latin America, where dengue remains a significant public health challenge,19 tools like Fever Forecaster can help healthcare professionals anticipate periods of increased risk and prepare earlier.
Haleon (LSE/NYSE: HLN) is a consumer company that is solely focused on better everyday health. Our people, our brands, our research, our investment and our innovation are aimed at improving the everyday health of consumers. Our product portfolio spans six major categories – Oral Health, Vitamins, Minerals and Supplements (VMS), Pain Relief, Respiratory Health, Digestive Health and Therapeutic Skin Health and Other. Our superior brands – such as Advil, Centrum, Otrivin, Panadol, Parodontax, Polident, Sensodyne, Theraflu and Voltaren – are trusted by more than one billion consumers and are recommended by health professionals around the world.
| Media Contacts: |
| Amy Lababidi |
| amy.f.lababidi@haleon.com |
| +44(0)7894 827 836 |
1 World Health Organization: Dengue Fact Sheet
2 Nicholas Hall data, excludes the US
3 Known globally as Panadol
4 Proactive information and guidance includes: forecasts, risk assessments, incidence information, trend analyses, interactive maps, educational content, clinical guidance and other disease-related information
5 World Health Organization: Dengue Fact Sheet
6 World Health Organization: Dengue: global situation, surveillance and progress – 2024 update
7 World Health Organization: Dengue Fact Sheet
8 Fever Forecaster outputs are intended to support, not replace, professional judgement and should not be used as a management tool or as a substitute for medical diagnosis or treatment decisions
9 World Health Organization: Dengue Fact Sheet
10 World Health Organization: Dengue Fact Sheet
11 World Health Organization: Dengue Fact Sheet
12 World Health Organization: Dengue Fact Sheet
13 CDC and WHO recommendation, as NSAIDs are not advised due to associated risks; seek medical advice if dengue is suspected
14 Nicholas Hall data, excludes the US
15 Forecasts are supplementary and pharmacists remain responsible for their own inventory and stocking decisions
16 The tool does not collect or process any personal information
17 World Meteorological Organization: El Niño set to become very strong, raising risks of extreme weather into 2027
18 The Lancet: The burden of El Niño–Southern Oscillation-related dengue attributable to anthropogenic climate change: a multicountry modelling study
19 World Health Organization: Dengue: global situation, surveillance and progress – 2024 update
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