The World Health Organization (WHO) warned on Tuesday that the world could be on the brink of another chikungunya epidemic, similar to the 2005 outbreak, unless swift measures are implemented to control its spread.
"Chikungunya is not a widely known disease, but it’s already circulating in 119 countries, placing 5.6 billion people at risk," Diana Rojas Alvarez, WHO's team lead on arboviruses, said during a UN briefing.
The virus, transmitted by Aedes mosquitoes, causes fever, rash, and intense joint pain, which can persist for weeks and cause long-term disability in up to 40% of those infected.
Since early 2025, the virus has triggered major outbreaks across Indian Ocean islands such as La Reunion, Mayotte, and Mauritius, with estimates suggesting that a third of La Reunion's population may have been infected.
The virus is also spreading across Madagascar, Somalia, Kenya, and South Asia, where countries like India, Sri Lanka, and Bangladesh are reporting increased cases. Infections have also reached Europe, with local transmission reported in France and suspected cases in Italy.
"The pattern mirrors what we saw in 2004–2005," Rojas warned. "We must act now to avoid history repeating itself."
While case numbers are currently declining in the Indian Ocean region due to seasonal changes, WHO emphasized the importance of early detection and a rapid response to minimize infections and long-term impacts.
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Maritime trackers received new reports of an attack on a ship in the Strait of Hormuz on Sunday, according to the UK Maritime Trade Operations (UKMTO), adding to concerns about energy supplies after Saudi Arabia shut down a vital oil pipeline on Saturday.
A Kyiv-Warsaw train was struck near the Polish border, Ukraine's state railway firm said on Sunday. No passengers were injured. Ukrainian Railways said that the country's railways were facing systematic attacks for a second day and warned of widespread delays.
U.S. Central Command said 101 commercial vessels have been redirected in the Strait of Hormuz, while oil prices rose more than three per cent amid fresh regional attacks and supply concerns.
A Russian strike on a farm warehouse in Pryluky, north-central Ukraine, has killed at least three people, local police said. Meanwhile, EU foreign policy chief Kaja Kallas said an attack on a train near the Polish border was an attempt to intimidate Ukraine's allies.
China will lead the creation of an open source platform among BRICS members to promote cooperation on large language models, Chinese President Xi Jinping said on Sunday.
Tobacco use may significantly reduce fertility in both men and women, according to a new World Health Organization (WHO) publication that highlights growing evidence linking smoking and exposure to second-hand smoke with reproductive health problems.
A record-breaking heatwave that swept across western Europe in late June has been linked to more than 10,000 excess deaths, according to newly released mortality data, highlighting the growing human toll of extreme temperatures across the continent.
Authorities in Nigeria's Ondo State have launched an investigation after 24 people died and several others were hospitalised following the consumption of a locally produced herbal drink in communities in the country's southwest.
A new study has found that baby girls exposed to paracetamol during pregnancy had, on average, smaller ovaries and uteruses and fewer ovarian follicles than those whose mothers did not take the painkiller.
The World Health Organisation (WHO) has warned that efforts to contain the Ebola outbreak in the Democratic Republic of Congo (DRC) are facing growing pressure as the virus spreads to new areas faster than treatment capacity can be expanded.
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