Sentences with phrase «tsetse flies»

Predicting the distribution of tsetse flies in west Africa using temporal Fourier processed meteorological satellite data

Gambian sleeping sickness, or Gambian human African trypanosomiasis, is caused by a parasite called Trypanosoma brucei gambiense, carried by tsetse flies in Central and West Africa.

Sleeping sickness, or African trypanosomiasis, is caused by trypanosome parasites transmitted by tsetse flies and threatens millions of people in sub-Saharan Africa.

The disease, fatal if left untreated, threatens millions of people annually in the 36 countries in sub-Saharan Africa where the parasite - transmitting tsetse fly lives, according to the World Health Organization.

Next she was hired to help control tsetse fly in the dense bush on the banks of the Zambezi in Zimbabwe.

On the road up we passed the government outpost for tsetse fly control, and it was not long before the tsetses had joined us in the cabin and were digging in.

Harry said the sleeping - sickness scare from tsetse fly bites was quite overrated, that the two men who had died, the white hunter and the client, would have been all right if they'd been less stubborn and rushed on back to Maun.

«This information will be very useful to help develop new tools that could reduce or even eradicate tsetse flies,» says Dr John Reeder, Director of the Special Programme for Research Training in Tropical Diseases, at WHO.

«Tsetse flies carry a potentially deadly disease and impose an enormous economic burden on countries that can least afford it by forcing farmers to rear less productive but more trypanosome - resistant cattle.»

African tsetse flies are not pleasant to encounter.

«You aren't begrudging the famine - ridden Botswana tsetse fly a little blood, are you?»

Take the example of the great Luangwa Valley of Northern Hhodesia — 15,000 to 20,000 square miles solidly under tsetse fly, carrying one permanent central river and one permanent transverse stream.

More than 4,000 flies were captured, of which 30 % — mostly tsetse flies, which spread African sleeping sickness — were engorged with blood.

Earlier research testing tsetse fly preferences for black, white, or striped landing surfaces found that the flies preferred black squares, but the testing didn't explain why.

Zebras don't really encounter tsetse flies out on the open plain, Caro says.

Researchers widely use DNA to identify invertebrate diets, and previous studies have detected vertebrate DNA inside bloodsucking tsetse flies, mosquitoes, and ticks.

She was curious about whether zebra stripes were attractive to tabanids, a family of insects that includes tsetse flies and horseflies — notorious pests that can transmit illnesses such as sleeping sickness and Chagas disease.

Instead of the typical low - involvement insect motherhood of laying many little eggs and leaving them to their luck, a female tsetse fly has just one offspring at a time.

Tsetse flies look like robust house flies but live very differently.

«I have loved tsetse flies ever since I first learned about them,» she says.

They also caught tsetse flies and determined what species they had last fed on.

Its advanced sensory system allows different tsetse fly species to track down potential hosts either through smell or by sight.

They also reexamined the occurrence of bicoid and discovered that the gene has been repeatedly lost or substantially altered in certain fruit flies and tsetse flies during evolution.

Also of note has been the identification of the patches of land to which tsetse flies are increasingly being confined in the Zambezi Valley in Zimbabwe.

Some bugs, such as tsetse flies, can bite through thin fabric.

He meets the father (Falk) of his son - in - law - to - be, who tells hilarious dinner - table stories about the horrors of life in the Guatemalan bush country, where tsetse flies the size of eagles carry off small children; this fellow also mumbles something about working for the government, hoodwinking Kornpett into accompanying him on an ostensible mission against fiscal guerrillas hiding out on a Caribbean isle called Tijada.

There are no hippos, crocs or tsetse flies so hop out and float down the temporary rivers in the warm sunlight.

Bright colours are to be avoided because they attract animals plus they can be distracting for safari goers looking to spot wildlife, black and dark blue can attract tsetse flies (usually an issue in mid-continental Africa between the Sahara and the Kalahari Deserts), and white is usually a no go because dirt shows very easily.

HAT is caused by a single - celled parasite, Trypanosoma brucei, that enters the body through the bites of tsetse flies.

Consider as well those diseases thought of as «just» tropical because they are transmitted by tropical vectors: malaria transmitted by mosquitoes, sleeping sickness spread by tsetse flies, and Chagas» disease (associated with edema, fever, and heart disease) spread by kissing bugs.

Mining the genome of the disease - transmitting tsetse fly, researchers have revealed the genetic adaptions that allow it to have such unique biology and transmit disease to both humans and animals.

And where, by the way, is the tsetse fly?

It has all the requirements: plenty of water, plenty of grazing land, plenty of tsetse flies.

One Saturday night not long ago two young hunters named Daryl Dandridge and Dougie Wright got caught up in a hunters» debate on the terrors of the swamp — the Okavango Swamps in northern Botswana consist of 6,500 square miles of crocodiles, hyenas, lions, buffalo and tsetse flies — and, accepting a dare (no cash involved), set out straight away to tackle the 150 - mile crossing from Maun to Shakawe with nothing more than the knives on their belts.

Started controlling the tsetse fly and opening it up for farming.

You eradicate the tsetse fly and the African moves in with his cattle, and the game goes.

Wolbachia appears even more attractive considering its potential application in controlling other insect - borne diseases, such as malaria and the tsetse fly's sleeping sickness.

The nearest bacterial cousin is a symbiotic bacterial species found in the tsetse fly, another blood feeding parasite.

This was particularly surprising because deltamethrin in doses of only 0.2 grams per hectare is very effective against the tsetse fly.

But the tsetse fly is no longer the guardian that it was of pristine habitat and wild game; science is beating it gradually.

The tsetse fly still occupies two million square miles of Africa, barring such areas to pastoralism.

Lead author Paul - Yannick Bitome - Essono, from the National Center for Scientific and Technological Research, France, explains: «We thought the tsetse fly might be a good candidate in our study, as both sexes feed on blood, they are large and easily trapped, present in large numbers in Central Africa, and are opportunistic feeders with no strong preference for a particular host animal, so would feed on a large range of wildlife.»

Tsetse flies are already trapped and killed in a similar way.

Sequencing the genome and assessing gene activity in various tissues in the tsetse fly led to new insights into its biology and the control of parasitic diseases transmitted by this insect.

It's a tsetse fly, the carrier of the single - celled parasites that cause sleeping sickness.

These types of sensors are present in disease - spreading insects like mosquitoes and tsetse flies and may help scientists better understand how insects target warm - blooded prey — like humans — and spread disease.

Tsetse flies were once an insidious pest in Zimbabwe, spreading pathogens responsible for deadly sleeping sickness in man and a similar disease called nagana in cattle, diminishing milk yields and wiping out herds.

Sleeping sickness, caused by two subspecies of the Trypanosoma brucei unicellular parasite and transmitted by tsetse flies, affects an estimated 50,000 to 70,000 people annually in Africa.