Thursday July 18, 2019

1bn People Could be Exposed to Dengue, Zika by 2080

Dengue is the fastest growing mosquito-borne disease across the world today, causing nearly 400 million infections every year, according to the World Health Organisation (WHO)

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Dengue is transmitted by the bite of the Aedes mosquito that typically attacks during day time. Pixabay

Global warming could expose as many as a billion people to mosquito-borne diseases including dengue and Zika by 2080, says a new study that examined temperature changes on a monthly basis worldwide.

The study found that with the rise in temperature, dengue is expected to have a year-round transmission in the tropics and seasonal risks almost everywhere else. A greater intensity of infections is also predicted.

To understand, researchers from Georgetown University in the US looked at temperatures month by month to project the risks through 2050 and 2080.

While almost all of the world’s population could be exposed at some point in the next 50 years, places like Europe, North America, and high elevations in the tropics that used to be too cold for the viruses will face new diseases like dengue.

On the other hand, in areas with the worst climate increase, including west Africa and southeast Asia, serious reductions are expected for the Aedes albopictus mosquito, most noticeably in southeast Asia and west Africa, revealed the study, published in the journal PLOS Neglected Tropical Diseases.

Dengue vaccine.
A Manila Health officer shows off a pair of vials of the anti-dengue vaccine Dengvaxia after being recalled from local government health centers Tuesday, Dec. 5, 2017 in Manila, Philippines. The World Health Organization says the first-ever vaccine for dengue needs to be dealt with in “a much safer way,” meaning that the shot should mostly be given to people who have previously been infected with the disease. VOA

Both Aedes aegypti and Aedes albopictus mosquitoes can carry dengue, chikunguyna and Zika viruses, as well as at least a dozen other emerging diseases.

“Climate change is the largest and most comprehensive threat to global health security,” said Colin J. Carlson, postdoctoral candidate in Georgetown University in the US.

“The risk of disease transmission is a serious problem, even over the next few decades,” Carlson added.

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Dengue is the fastest growing mosquito-borne disease across the world today, causing nearly 400 million infections every year, according to the World Health Organisation (WHO).

The 2018 data from the National Vector Borne Disease Control Programme (NVBDCP) and National Health Profile showed that cases of dengue increased 300 per cent — from less than 60,000 cases in 2009, it increased to 188,401 in 2017. (IANS)

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15 Dead, Over 15,000 Infected by Dengue in Sri Lanka

Medical experts urged people to seek immediate medical attention if they suffered from high fever, uncontrolled vomiting, abdominal pain, dizziness and reduced urinary

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Dengue is transmitted by the bite of the Aedes mosquito that typically attacks during day time. Pixabay

Fifteen people have died and over 15,000 infected by dengue across Sri Lanka in the first four months of this year, the Epidemiology Unit said here on Friday.

Till April 30, a total of 15,407 dengue cases were reported with the highest number of cases reported from the Colombo district with 3,405 cases, followed by Gampaha in the outskirts of Colombo with 2,007 cases and Jaffna in the north with 1,783 cases, Xinhua news agency reported.

Medical experts urged people to seek immediate medical attention if they suffered from high fever, uncontrolled vomiting, abdominal pain, dizziness and reduced urinary.

Dengue vaccine.
A Manila Health officer shows off a pair of vials of the anti-dengue vaccine Dengvaxia after being recalled from local government health centers Tuesday, Dec. 5, 2017 in Manila, Philippines. The World Health Organization says the first-ever vaccine for dengue needs to be dealt with in “a much safer way,” meaning that the shot should mostly be given to people who have previously been infected with the disease. VOA

“All fever patients need rest and should refrain from attending work or school. Dengue Haemorrhagic Fever (DHF) can be fatal,” epidemiologists said.

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In 2018, more than 50 people died and over 48,000 affected by the dengue virus in Sri Lanka, with the National Dengue Control Unit launching several programmes to eradicate dengue’s breeding grounds in several districts of the island country. (IANS)