Climate change is placing more people at risk of mosquito-borne diseases such as dengue fever, extending the seasonal window and creating frequent outbreaks that will become increasingly difficult to deal with, experts have said.
The geographic range of vector-borne diseases has expanded rapidly in the past 80 years, placing more than half the world’s population at risk.
Experts warn that due to accelerating global warming and urbanisation, cases are set to spread across currently unaffected parts of northern Europe, Asia, North America and Australia over the next few decades.
As a result, an additional 4.7 billion people will be placed in danger if emissions and population growth continue to rise at their current rate.
The warning – which will be shared in a presentation at this year’s Global Congress held by the European Society of Clinical Microbiology and Infectious Diseases – comes after a report by The National last month revealed global cases of dengue are rising sharply, with a number of Arab nations in particular experiencing an increase in cases in recent months.
Medics in Dubai said although numbers of infected patients suffering from the debilitating tropical disease requiring care were low, several cases had been reported to health authorities in recent months.
Prof Rachel Lowe of the Catalan Institution for Research and Advanced Studies will tell the forum substantially more people will be placed at risk of mosquito-borne diseases due to warming temperatures.
She said: “Global warming due to climate change means that the disease vectors that carry and spread malaria and dengue can find a home in more regions, with outbreaks occurring in areas where people are likely to be immunologically naive and public health systems unprepared.
“The stark reality is that longer hot seasons will enlarge the seasonal window for the spread of mosquito-borne diseases and favour increasingly frequent outbreaks that are increasingly complex to deal with.”
Dengue cases have been largely confined to tropical and subtropical regions because colder temperatures kill the mosquito’s larvae and eggs.
But longer, hotter seasons have resulted in dengue becoming the most rapidly spreading mosquito-borne viral disease in the world.
Nine of the 10 most hospitable years for dengue transmission have occurred since 2000, resulting in the disease spreading in 13 European countries, with localised transmission in France, Italy and Spain last year.
According to the World Health Organisation, the number of dengue cases reported has increased in the past two decades from 500,000 in 2000 to more than 5 million in 2019.
Dengue fever in 2023 - in pictures
“Droughts and floods linked to climate change can lead to greater transmission of the virus, with stored water providing additional mosquito breeding sites," Prof Lowe said.
“Lessons from previous outbreaks underscore the importance of assessing future vector-borne disease risks and preparing contingencies for future outbreaks."
Experts say if global warming was limited to 1°C, the population at risk of malaria and dengue would be expected to increase by an additional 2.4 billion people by 2100, relative to 1970-1999.
But if high carbon emissions and population growth continue, nearly double that number – 4.7 billion – would be placed at risk by the end of the century.
Experience shows infectious disease outbreaks can follow El Niño and other extreme climatic events such as severe floods, prolonged droughts, tropical cyclones and heatwaves.
“El Niño events that occur every two-seven years cause hotter and wetter weather, providing ideal conditions for water-borne and mosquito-borne disease outbreaks, allowing disease-carrying insects like the Aedes aegypti and Aedes albopictus mosquitoes, which spread the viruses that cause Zika and dengue, to proliferate,” Prof Lowe said.
The Zika pandemic that emerged in Brazil in 2015 was a product of the El Niño connection – months of warmer-than-average temperatures helped fuel the spread of the virus that infected 1.5 million people.
And the current El Niño is now one of the strongest on record, catapulting it into rare ‘super El Niño’ territory.
Prof Lowe said: “With climate change seeming so difficult to address, we can expect to see more cases and possibly deaths from diseases such as dengue and malaria across mainland Europe.
"We must anticipate outbreaks and move to intervene early to prevent diseases from happening in the first place.
“Efforts need to focus on enhancing surveillance with early warning and response systems similar to those seen in other parts of the world, to more effectively target finite resources to the most at-risk areas to control and prevent disease outbreaks and save lives."
The effects of climate change on the Middle East region - in pictures
By combining disease-carrying insect surveillance with climate forecasts, researchers are developing ways to predict when and where epidemics might occur and direct interventions to the most at-risk areas in advance.
One similar project, which is being led by Prof Lowe, is using a powerful supercomputer to understand how climate and disease transmission are linked to predict mosquito-borne disease outbreaks in 12 countries.
"By analysing weather patterns, finding mosquito breeding sites with drones and gathering information from local communities and health officials, we are hoping to give communities time to prepare and protect themselves," she said.
“But ultimately, the most effective way to reduce the risk of these diseases spreading to new areas will be to dramatically curb emissions.”
MATCH INFO
New Zealand 176-8 (20 ovs)
England 155 (19.5 ovs)
New Zealand win by 21 runs
TRAP
Starring: Josh Hartnett, Saleka Shyamalan, Ariel Donaghue
Director: M Night Shyamalan
Rating: 3/5
AI traffic lights to ease congestion at seven points to Sheikh Zayed bin Sultan Street
The seven points are:
Shakhbout bin Sultan Street
Dhafeer Street
Hadbat Al Ghubainah Street (outbound)
Salama bint Butti Street
Al Dhafra Street
Rabdan Street
Umm Yifina Street exit (inbound)
How to help
Send “thenational” to the following numbers or call the hotline on: 0502955999
2289 – Dh10
2252 – Dh 50
6025 – Dh20
6027 – Dh 100
6026 – Dh 200
COMPANY PROFILE
Name: Akeed
Based: Muscat
Launch year: 2018
Number of employees: 40
Sector: Online food delivery
Funding: Raised $3.2m since inception
Company Profile:
Name: The Protein Bakeshop
Date of start: 2013
Founders: Rashi Chowdhary and Saad Umerani
Based: Dubai
Size, number of employees: 12
Funding/investors: $400,000 (2018)
Jetour T1 specs
Engine: 2-litre turbocharged
Power: 254hp
Torque: 390Nm
Price: From Dh126,000
Available: Now
MATCH INFO
What: 2006 World Cup quarter-final
When: July 1
Where: Gelsenkirchen Stadium, Gelsenkirchen, Germany
Result:
England 0 Portugal 0
(Portugal win 3-1 on penalties)
Key findings of Jenkins report
- Founder of the Muslim Brotherhood, Hassan al Banna, "accepted the political utility of violence"
- Views of key Muslim Brotherhood ideologue, Sayyid Qutb, have “consistently been understood” as permitting “the use of extreme violence in the pursuit of the perfect Islamic society” and “never been institutionally disowned” by the movement.
- Muslim Brotherhood at all levels has repeatedly defended Hamas attacks against Israel, including the use of suicide bombers and the killing of civilians.
- Laying out the report in the House of Commons, David Cameron told MPs: "The main findings of the review support the conclusion that membership of, association with, or influence by the Muslim Brotherhood should be considered as a possible indicator of extremism."
RESULTS
5pm: Maiden (PA) Dh80,000 1,600m
Winner: Raghida, Szczepan Mazur (jockey), Ibrahim Al Hadhrami (trainer)
5.30pm: Maiden (PA) Dh80,000 1,600m
Winner: AF Alareeq, Connor Beasley, Ahmed Al Mehairbi
6pm: Arabian Triple Crown Round-2 Group 3 (PA) Dh300,000 2,200m
Winner: Basmah, Fabrice Veron, Eric Lemartinel
6.30pm: Liwa Oasis Group 2 (PA) Dh300,000 1,400m
Winner: AF Alwajel, Tadhg O’Shea, Ernst Oertel
7pm: Wathba Stallions Cup Handicap (PA) Dh70,000 1,600m
Winner: SS Jalmod, Richard Mullen, Satish Seemar
7.30pm: Handicap (TB) Dh100,000 1,600m
Winner: Trolius, Ryan Powell, Simon Crisford
More on Quran memorisation:
THE%C2%A0SPECS
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UAE currency: the story behind the money in your pockets
BMW M5 specs
Engine: 4.4-litre twin-turbo V-8 petrol enging with additional electric motor
Power: 727hp
Torque: 1,000Nm
Transmission: 8-speed auto
Fuel consumption: 10.6L/100km
On sale: Now
Price: From Dh650,000
Diriyah%20project%20at%20a%20glance
%3Cp%3E-%20Diriyah%E2%80%99s%201.9km%20King%20Salman%20Boulevard%2C%20a%20Parisian%20Champs-Elysees-inspired%20avenue%2C%20is%20scheduled%20for%20completion%20in%202028%0D%3Cbr%3E-%20The%20Royal%20Diriyah%20Opera%20House%20is%20expected%20to%20be%20completed%20in%20four%20years%0D%3Cbr%3E-%20Diriyah%E2%80%99s%20first%20of%2042%20hotels%2C%20the%20Bab%20Samhan%20hotel%2C%20will%20open%20in%20the%20first%20quarter%20of%202024%0D%3Cbr%3E-%20On%20completion%20in%202030%2C%20the%20Diriyah%20project%20is%20forecast%20to%20accommodate%20more%20than%20100%2C000%20people%0D%3Cbr%3E-%20The%20%2463.2%20billion%20Diriyah%20project%20will%20contribute%20%247.2%20billion%20to%20the%20kingdom%E2%80%99s%20GDP%0D%3Cbr%3E-%20It%20will%20create%20more%20than%20178%2C000%20jobs%20and%20aims%20to%20attract%20more%20than%2050%20million%20visits%20a%20year%0D%3Cbr%3E-%20About%202%2C000%20people%20work%20for%20the%20Diriyah%20Company%2C%20with%20more%20than%2086%20per%20cent%20being%20Saudi%20citizens%0D%3C%2Fp%3E%0A
Why are asylum seekers being housed in hotels?
The number of asylum applications in the UK has reached a new record high, driven by those illegally entering the country in small boats crossing the English Channel.
A total of 111,084 people applied for asylum in the UK in the year to June 2025, the highest number for any 12-month period since current records began in 2001.
Asylum seekers and their families can be housed in temporary accommodation while their claim is assessed.
The Home Office provides the accommodation, meaning asylum seekers cannot choose where they live.
When there is not enough housing, the Home Office can move people to hotels or large sites like former military bases.
Some of Darwish's last words
"They see their tomorrows slipping out of their reach. And though it seems to them that everything outside this reality is heaven, yet they do not want to go to that heaven. They stay, because they are afflicted with hope." - Mahmoud Darwish, to attendees of the Palestine Festival of Literature, 2008
His life in brief: Born in a village near Galilee, he lived in exile for most of his life and started writing poetry after high school. He was arrested several times by Israel for what were deemed to be inciteful poems. Most of his work focused on the love and yearning for his homeland, and he was regarded the Palestinian poet of resistance. Over the course of his life, he published more than 30 poetry collections and books of prose, with his work translated into more than 20 languages. Many of his poems were set to music by Arab composers, most significantly Marcel Khalife. Darwish died on August 9, 2008 after undergoing heart surgery in the United States. He was later buried in Ramallah where a shrine was erected in his honour.
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The%20specs
%3Cp%3E%3Cstrong%3EEngine%3A%20%3C%2Fstrong%3E2.0-litre%204-cyl%20turbo%3Cbr%3E%3Cstrong%3EPower%3A%20%3C%2Fstrong%3E190hp%20at%205%2C600rpm%3Cbr%3E%3Cstrong%3ETorque%3A%20%3C%2Fstrong%3E320Nm%20at%201%2C500-4%2C000rpm%3Cbr%3E%3Cstrong%3ETransmission%3A%20%3C%2Fstrong%3E7-speed%20dual-clutch%20auto%3Cbr%3E%3Cstrong%3EFuel%20consumption%3A%20%3C%2Fstrong%3E10.9L%2F100km%3Cbr%3E%3Cstrong%3EPrice%3A%20%3C%2Fstrong%3EFrom%20Dh119%2C900%3Cbr%3E%3Cstrong%3EOn%20sale%3A%20%3C%2Fstrong%3ENow%3C%2Fp%3E%0A
Mohammed bin Zayed Majlis
More from Armen Sarkissian
The five types of long-term residential visas
Obed Suhail of ServiceMarket, an online home services marketplace, outlines the five types of long-term residential visas:
Investors:
A 10-year residency visa can be obtained by investors who invest Dh10 million, out of which 60 per cent should not be in real estate. It can be a public investment through a deposit or in a business. Those who invest Dh5 million or more in property are eligible for a five-year residency visa. The invested amount should be completely owned by the investors, not loaned, and retained for at least three years.
Entrepreneurs:
A five-year multiple entry visa is available to entrepreneurs with a previous project worth Dh0.5m or those with the approval of an accredited business incubator in the UAE.
Specialists
Expats with specialised talents, including doctors, specialists, scientists, inventors, and creative individuals working in the field of culture and art are eligible for a 10-year visa, given that they have a valid employment contract in one of these fields in the country.
Outstanding students:
A five-year visa will be granted to outstanding students who have a grade of 95 per cent or higher in a secondary school, or those who graduate with a GPA of 3.75 from a university.
Retirees:
Expats who are at least 55 years old can obtain a five-year retirement visa if they invest Dh2m in property, have savings of Dh1m or more, or have a monthly income of at least Dh20,000.
What is blockchain?
Blockchain is a form of distributed ledger technology, a digital system in which data is recorded across multiple places at the same time. Unlike traditional databases, DLTs have no central administrator or centralised data storage. They are transparent because the data is visible and, because they are automatically replicated and impossible to be tampered with, they are secure.
The main difference between blockchain and other forms of DLT is the way data is stored as ‘blocks’ – new transactions are added to the existing ‘chain’ of past transactions, hence the name ‘blockchain’. It is impossible to delete or modify information on the chain due to the replication of blocks across various locations.
Blockchain is mostly associated with cryptocurrency Bitcoin. Due to the inability to tamper with transactions, advocates say this makes the currency more secure and safer than traditional systems. It is maintained by a network of people referred to as ‘miners’, who receive rewards for solving complex mathematical equations that enable transactions to go through.
However, one of the major problems that has come to light has been the presence of illicit material buried in the Bitcoin blockchain, linking it to the dark web.
Other blockchain platforms can offer things like smart contracts, which are automatically implemented when specific conditions from all interested parties are reached, cutting the time involved and the risk of mistakes. Another use could be storing medical records, as patients can be confident their information cannot be changed. The technology can also be used in supply chains, voting and has the potential to used for storing property records.
The biog
Place of birth: Kalba
Family: Mother of eight children and has 10 grandchildren
Favourite traditional dish: Al Harees, a slow cooked porridge-like dish made from boiled cracked or coarsely ground wheat mixed with meat or chicken
Favourite book: My early life by Sheikh Dr Sultan bin Muhammad Al Qasimi, the Ruler of Sharjah
Favourite quote: By Sheikh Zayed, the UAE's Founding Father, “Those who have no past will have no present or future.”
