for everyone who wants to know more about the topics that concern us about the stories the on the headline. with that insight in depth interviews and see the world in progress. the, it's a highly aggressive parasite that also bites during the day. unconcern submit a range of different viruses, the asian tiger. most of the time the global movement of goods and climate change have accelerated. it spread in europe, biologist, and now sterilizing and releasing launch numbers. if the insects to try to slow it down the that on much more this week on tomorrow

today, d w, science magazine. welcome to the show. this loud is teeming with asian tiger mosquito. it's an every stage of development from larvae to adults. how leo nor a flock show has studied the behavior of the insects in great detail and is now ready to launch an unusual experiment. she's been preparing for years. the tiger mosquito population is growing rapidly in europe. and the biologist is hoping to slow that close in a new way by releasing huge numbers for sterile males. in the picture, risk village of more co to in southern switzerland researchers will release a total of $2000000.00 of the insects this year, which i'm request request to see for per se sends mid may slot show has been releasing hard tiger mosquitoes weekly at around 70 different locations and more

code to the people who live here don't have to worry about bites though. even if it feels like they should get there is no need to worry the males male started by 1st they just fly around and then they die after a few days to have enough and you get time in the infer tile. type your mosquito. the males don't survive long because they've been weakened by the sterilization process and transport. but even during their short lives, they compete with for dial males in the wild for mates. and due to their sheer numbers, the females can't avoid them. steve citizens dimension in the field, the sterilized miles mates with the young sterilized females. id often fancy when the and often making one's females become and thoughts while for life and

cancelling the flag. the ultimate aim is to cause the population of the invasive species to collapse. kelly a note, a flock chose goal is to reduce the number of tiger mosquitoes in the test area by around 80 percent. the males are brad and sterilized in italy at the research center for agriculture and the environment. in bologna, the process starts with egg production and these cages, healthy mosquitoes, mates. the females are regularly fed blood from animals. without it. they can produce x, the within a week, the x mature into a lot of a and enter the pupil stage. that's when males are separated from the females to a method known as dimensional analysis. because males are smaller than females,

they can be sorted out based on size, the mail to pay or then expose the x rays in the water, which affects their sensitive reproductive organs. the treatment doesn't kill them, but it does make them in for child. one drawback is that the procedure is still very expensive. sterilizing a 1000 of the insects costs around $60.00 euro. so the bill for this year is experiment is around $200000.00 euros in total. but if it succeeds and production is scaled up, that will reduce costs dramatically based. if it's sorry, that same pi odyssey, i'm convinced that the price that's right, much cheaper in the field. yes. the talk with that especially is commercial interest spouts play around all the time, the piston here. that's really time. the technique is not really old as expensive, but we have to scale the top to make it cheaper. last enough that's law. hold on.

let me just be, look at this, the method works. the project will be promoted internationally in cooperation with the w h o. especially in countries where tiger mosquitoes regularly transmit, potentially deadly diseases. taken most of the toys can transmit viruses from one host to the next. like the west nile virus, which mainly infects the cavities by the vitamin. in fact, however, it also sometimes ends up in human pathogens that makes it jump from animals to humans known as so a no c power growing problem. the research team and after care is trying to detect them. i don't the, the stage before they can potentially lead to upon demick very swapping one of the criminals, the to research firm and kenya, campbells are commonly kept as live stuck in the country and often have close contacts with the human keepers. reason enough for the research has to investigate

what's the animal's head might be carrying the passage and that causes the disease . cool. must a relative of the virus that causes k 5th 19 in humans cells copeland and must cause belong to step familiar, which is quite a corner of it. that's funny. i bet families is composed of of many other viruses which are highly infectious and pretended to human human beings. and this tend to be as a know to get his means be able to be made for monday most. and the transfer respect to humans does show malloy and his team have seen no signs of mas. that's all around the moles, among them talk to could also carries do enough to capacitance. life stop farm is like so most of the play live in very close proximity to the around animals. so the reset to is visit regularly to ask about tiny symptoms of disease. his animals might shy one, and they also take blood samples from dice, comfortable, and owners. for analysis,

the milan is going to need to get down. here you go. in this household, they have more than 60 capital. so picking 10 are giving us some good the indication, or the special nice in the, in the have. so you don't have to sample all of them. but you can pick a sample that is physically political. the total number i'll see will get the same information to prevent the potential spread of passages and select the one that causes inputs and mouth disease from one had to the next. the team regularly disinfect that, but they also educate the farmers about prevention that face also there i go back to the example. i gave you a boost analysis. so um it is 90 mile that he's infected tends to be tied to the bacteria in may. so if you milk you add the mall and you don't violate a new ticket tool, then you stop the chance of picking the infection. the reset, just return with the samples to the weather will be centrifuge the stair and obtain

to spend tested for a range of passages. one infections rise, and this part of kenya, james of toko, is the 1st to know and takes the necessary time to meshes which include distributing free medicines. so looking at city this week, you can place for money most on money and humans. one is called lucy lucy's. the other one is called the queue fever. and the other one is to be fully feeble by us . so for these 3, we can detect that in both animals on humans. and so the system that we have collected here will be tested to find out the only top talks that's a 1st it's most kilimanjaro, the mass i communities have also live close to the capital. so the risk of diseases, jumping from animals to humans is high. even so many people don't know enough about how to protect themselves. one thing i'm going to, to get our colleagues that suffered from

a number of diseases that we don't recognize in gwinnett, one of them, for example, came from water one bed. you can go my g. p. s. other infections can be transmitted by biting insects or, but the spread of disease 3 does. he will to oppose is the biggest danger to live stuck from a slight kitchen bay to reach me from the account. number of the problem has been exacerbated like stream drones. tim kenya is now that there's drought. farmers are suffering many losses. they've lost a lot of live stock and we can hardly identify the diseases and the live stock. they may be just suffering from hunger. c to the doctors take blood samples from animals to test in the lab. fortunately that the know you made your own ranks if noval passages in the region or even worry and mutations. but wild and domesticated animals lift practically side by side here,

x xbox. worry that has the window stick disease could develop and can yeah, there is a lot of mutation, 6 victims due to the tendency and then right them in the climate change and also the land use buttons and their population precious as well brought about changes that actually them, you did the engines, this is closing ages. adam, you're taking day in day out. frederick subaru and a colleague detected a brucellosis infection today in a cow they examined the animal will be treated with antibiotics to stop the fever causing disease. but the vet also has to determine whether they are, you know, has been infected. they do cause as soon as they reduce. and also and cutting from us to use the productivity or for the rip noted practitioners to put in to use the grade level drugs. because at the moment that no, no antibiotics coming up and most of them know at assistant as the climate hedge ranges dramatically severely of expect moves, they would not take pathogens to

a pit and spread tight controls and needed in kenya on 12 wide. those controls will have to keep track of viruses like one code a l s. b, which was only discovered in ne china in 2017 kindly by takes it might be able to infect humans and codes flu like symptoms that at least initially resembled those close by table and stuff. a lightest pots, a disease that is wide spread and many pounds if you're including switzerland, new tech born viruses spreading and this patch of forest. that's why scientists from the university of the rigs institute of biology have come hunting for them here. ranging about a 100 meters on either side of the path. they searched through the undergrowth for the parasitic arachnids in 2017 a virus tentatively named

a l s. v was discovered in tx and a long shot engine china. it's thought to have caused disease symptoms and humans. in the fall of 2022 corners place it under his team, detected the virus and checks in switzerland for the 1st time. made off the customer, we expected to find take the phone and stuff, a lot, just viruses and we did, i live on a less v o, a long shot, a virus that was a fluke. the bones of course is by role. logistic was exciting to discover it in switzerland. it's exciting because practically nothing is known about this virus from a biological perspective. and we've now also decided to investigate the vars in the lot with molecular biology methods. example them when they come out, you know, because you also at regular intervals the team collect check, set specific locations of this can also help determine how concentrations of the

virus and the text changes. after half an hour. it's time to stop and count them 1st although it's rainy and just 14 degrees celsius, outside the scientists were able to find 15 teks in different stages of development to move around the rack minutes they've collected are sent to the viral logical institutes loud in zurich. that's where the real work begins to say kind, i've gone to the takes actually have a very hard shell that we now have to crack open, so to speak, to home. ok. we have to crush them, will have much noise them as we say in order to get at the nuclear assets that are inside corners play for records,

the proceedings step by step. the crushed tick is checked for all the genetic material. it contains not just from the animal itself, but also the fund guy, bacteria and viruses such as a l. s. v, that it carries. determining the structure of the virus is a necessary step to developing a blood test for detecting a l. s. v. in humans. an important step for the biologist, but also for switzerland's physicians had sewerage university hospital last summer. the number of patients with chick bites who later reported sent on his like fever, severe headaches, and impaired consciousness roads. there appear to be a clear connection, but somehow it didn't add up or my thoughts as long as not the thought by looking

1st for a frequent tick borne diseases such as t b, e i think born and set for light to say, live disease, sorry home you check that in particular when a patient remembers a take bite in the past, and that's what you look for 1st time. and surprisingly, we've had a large number of patients with these passages and not being detected by them. so we've started looking in other directions. the good the sufferers be infected with a l. s. v. to find out neurologist to p as in vice recently sent for the patient samples to coordinate flavors. laboratory for analysis isn't the i guess button. it's a big moment to if the passages to take to do it would really be for the 1st time in humans. and i'm just seeing how common it is in tex. we're curious to see if it can also be detected in patient. so that would help us and i think this would on 5 to 6 months later, the results are finally available. 20 to 25 percent of the patient samples tested

positive for a less fee. now a 2nd test has to be conducted to confirm the 1st one. at the moment, it's impossible to say how much of a health risk alice be actually poses the corner of the place. so it says, even if the suspicion is confirmed, there's no reason to panic if necessary, it shouldn't be too difficult to develop into effective protective vaccine. by the way, take solid insects, but rockets which have 8 legs instead of 6. and they've been around for over 500000000 years. so they have known before the age of the dinosaurs and other species have been around for quite a while as well. david from colombia centers. this question on the topic are animal species present today that survived the age of the dinosaurs?

some 66000000 years ago, a 14 kilometer wide asteroid slammed into the earth, triggering a mass extinction. within seconds, the space rock vaporized across the earth, fires raged, and volcanoes erupt. it within a few days, the earth was blanketed in darkness. the deadly ice age that followed lasted for years. acid rain transformed the ocean's vegetation died. 3 quarters of all species were wiped out. today's reptiles may resemble many dinosaurs, but in most cases they have little in common with therefore, bears. unlike crocodiles, a prehistoric relative of the crocodile emerged 250000000 years ago. and crocodiles are ultimate survivors. they eat almost anything and can go for long periods without food. turtles are also one of the oldest living reptile groups. the

earliest known turtles swim the world's oceans 225000000 years ago and looked remarkably similar to those solitary ancient creatures that exist today the sting reyes of rome, the oceans for even longer. these primordial creatures belong to the cartilage and has fish family. as to sharks, they were already among the top creditors of the oceans and the age of the dinosaurs, the catastrophic consequences of the asteroid had little impact on sharp biodiversity . horseshoe crabs haven't changed much in 150000000 years. that's because these living fossils can survive and water a varying salting this and warm. the birds evolved from a group of dinosaurs that survived thanks to their feathers, chickens and officers,

or the closest living relatives of toronto. saunders wrecks sounds improbable. just compare how they walk the problem, let is read. why do you think science question then send it in as a video, text or voice mail? if we answer your clearly on it, we'll send you a little surprised as a thank the when sudden insights multiply on mass. it can recover called forrest, in europe a best named treatise drawing insights. is the font be talking about for the last 2 years, spelt pest plus, had competition for the title from overseas? the asian long home to people is not also found in europe and north america. on to city with trees on the menu.

the asian long home retail is native to china, taiwan and the korean peninsula once established in other places, it's an intruder that's almost impossible to deal with. only selling the trees, which invites can help and that's on a grand scale, are not far from the village of so in central switzerland, the largest infestation of the asian loan home beach and in the country so far has come to light. make out sona. he works for the counselor for the son is trying to get the situation under control. by my medical say this 3 showed clear signs of an asian long horns. beetle infestation. you can see it clearly and these many bore holes. you can also see these marble galleries, what kind of damage they do to a tree in a cross section cotton and all the circular holes typically have to be till i made

one adult, eat the way to the surface of the developing inside the tree. so you know, after imagine from that heis trees, the adult be tools made females usually laid directs on the same trees. they themselves fed on as long as when the ex hunch, the new generation of lot of people that way back into the wood, an infestation will generally kind of tree eventually they rarely survive. let me say you can see how it gets riddled with holes and they destroy all the vascular bundles of the tree. can't absorb water and nutrients anymore. so it died about a couple to deprives the past of its food. sol suite over a 1000 trees of already been felt. it's only a reputation meshes have not been enough so far to limit the be to spread. in mid march, another infestation was discovered in this nearby stretch of forest. now the trees

have to be felt hairs, while the agent alone home to be told poses a huge threat to the citrus trees. it causes billions of dollars in damage worldwide. the insect was discovered in switzerland for the 1st time in 2011, hearing the pull to ball. so in a pallet of granite from china, it was then found in other parts of the country. the fight against the beat will cost millions, but it was a success, at least for a while. for 3 years, switzerland's was considered free of infestation until the insect showed up again. and so everything is now being done to prevent it from spreading. again. that means failing and destroying deciduous trees within a $100.00 me to radius around and infestation has to be done before the adult so much but the source also helps protect the village from lum

slides. so any counter measures and fighting the past have to be carefully way doc . they should effectively come by the asian long hold be too, but not weak and the protective force to not striking a balance is tricky. within the policy, they may be a we've done that by removing ground vegetation, like hazel bushes and small willows, which are not the central to the protective effect on gleick. then we take out the big trees that have a lot of rancho and or, and tangled with other tree lice thing. but we're trying to leave the rest as much as possible while keeping a close eye on the situation so that we fight the beetle and maintain the forest. that's a protective effect. a sense, hopefully stokes, with the trees hair attracts. yes, we can with the help of specially trained dogs for us to be to discuss discovered. and so comes to the lee and his animals were assigned to investigate the extent of

the infestation around the village. as far as the kind of live experience, i almost couldn't believe it. i was amazed how extensive it was and how many were on certain tree farm when we caught bugs picked them off like apples to and that's pretty impressive when you know what a single beetle can do. softly either a single female can weigh $200.00 egg somewhere. and this evening i'm so you won't die at all, but it's time to check whether all the beetles really have been wiped out by the falling meshes. the past is already considered eradicated is full years past be so free even just one surviving female or her rags can lead to a massive infestation. again, the following. yeah. the measures this time has cost around a 1000000 years to implement. the sun comes through its own absolutely necessary, because right now we can still contain it towards the end. if we don't do anything,

it will spiral out of control and then it'll really have consequences for everybody . the color, especially for the ecology here, lima, we need these freely. they provide shades, create corridors for cooler air and creatures, live in the lab, and we need the for as well. so it has economic and social consequences of salad. consequence. the monitoring and selling continues. the measures might seem drastic, but make outs on it as confidence that then necessary to eradicate the past. and once again, clear switzerland, the destructive, the tools, the by the way went out last. i won't take till i haven't take that. we on so you will questions, clips that are fun, accurate and to the points, but also based on the latest research one to discover even more from the world of

science. then photo s d w, science. i am not safe so this week on tomorrow and today the science show on dw, thanks for joining us and see you again next time, bye. for now, the

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the research is now on speak to the this is dw use life from the the in the us. presidents pushes the as well to protect civilians and causes main hospital stuff is that al cheapo say they're struggling to keep newborn babies of life in a hospital. black in the water and electricity foss, packing up for an indefinite absence. presidents of a town in iceland evacuated due to the threat of, of all kind of cobra option are allowed to return. that would be pretty flights to collect some of the samples surprised. but on the.