A to Z of Destinations
Australia, NZ and South Pacific
A to Z of Experiences
Walking and trekking
Diving and snorkelling
Wildlife and safaris
Meet the locals
Frontier and expedition
Cycling and Mountain Biking
Visiting the Poles
Career breaks and BIG trips
Body and soul
Volunteer and conservation
Australia, East Coast
Everest Base Camp
Aurora Borealis/Northern Lights
Machu Picchu and the Inca Trail
Trans-Siberian and Trans-Mongolian railway
Climb Mount Kilimanjaro
Cruising the Nile, Egypt
30th August 2011
Malaria carrying mosquitoes are disappearing from some parts of Africa, but scientists say it's too early to celebrate
Data from countries such as Tanzania, Eritrea, Rwanda, Kenya and Zambia indicate that the number of malaria cases is dropping fast.
Researchers have published a report in the Malaria Journal, saying that declining numbers are not just down to the use of mosquito nets and insecticides, as data has been taken from areas with few controls.
Professor Dan Meyrowitsch from the Department of Health Services Research at the University of Copenhagen said, “For more than ten years we have been collecting and counting the number of mosquitoes in Tanzanian villages. The number in our traps fell from 5,300 in 2004 to just 14 in 2009, and these were from villages without mosquito nets."
One possibility for the reduction in numbers is climate change. Researchers say that patterns of rainfall have been more chaotic in these regions of Tanzania and have often fallen outside the rainy season – disturbing the development of mosquitoes.
Meyrowitsch aded, "It could be partly due to this chaotic rainfall, but personally I don't think it can explain such a dramatic decline in mosquitoes, to the extent we can say that the malaria mosquitoes are almost eradicated in these communities. What we should consider is that there may be a disease among the mosquitoes, a fungi or a virus.”
Without knowing the cause of the decline, scientists have said that it is impossible to tell if, and when, the mosquito population will rebound. There are fears of an epidemic as children no longer have a natural immunity through exposure.
“If the mosquito population starts coming up again, and my own assumption is that it will, it is most likely we will have an epidemic of malaria with a higher level of disease and mortality especially amongst these children who have not been exposed,” said Meyrowitsch.
Check out our Africa travel guide for advice, tips and info | Destinations... More
Dealing with dengue and other mosquito-borne diseases | Advice... More
5 ways to avoid malaria | Inspire me... More
Malaria: Take pills, not risks | Advice... More
You must be logged in to leave a comment. Login or get more from Wanderlust - register today!
Eritrea travel guide, including map of Eritrea, top Eritrea travel experiences, tips for travel in Eritrea, plus steam train rides and colonial Asmara, Eritrea'
Kenya travel guide, including map of Kenya, top Kenya travel experiences, tips for travel in Kenya, plus where to see wildlife in Kenya
Tsavo is supposed to be a safe haven for Kenya's elephants, but with poaching on the rise can this national park keep its mighty tuskers safe? Brian Jackman investigates
Which is the best season to visit Kenya's Masai Mara? From April to May, say wildlife experts Jonathan and Angela Scott – here's why...
A new trail across Kenya’s Great Rift Valley links mud-and-thatch villages, shimmering lakes, flocks of flamingos, wildlife galore and around 25 million years of geological history
Thousands of migrating wildebeest have returned to Kenya, from the Serengeti National Park in Tanzania, months earlier than expected
A new visa scheme linking Kenya, Uganda and Rwanda has been announced
Following the insatiable demand for ivory, elephants could be 'wiped out' in less than 12 years by poachers, say conservationists
Simply select the destination you’re interested in or the activities you’re looking
for and we’ll send your request to a select panel of tour operators.
Each operator will respond to your request individually. Your details remain private
and are not disclosed to any partners unless you decide to proceed with a booking.
Exclusive Far East & Exotic Special Offers from Princess Cruises. Include Flights & Hotel Stays
£25 off your Walking Holiday in Europe
Presenting the Explorers’ Collection of Curated Adventures
Wanderlust sends out regular email newsletters – be the first to know about web
exclusives, competitions, hot offers and travel jobs. Register today!
I have read and agree to the Terms &
Where in the world are you? Add
#wanderlustmag to your tweets and share your latest travel adventures with
fellow Wanderlusters on wanderlust.co.uk
Get to know Wanderlust on facebook and bring all your travel-minded friends, too