And experts warn too much celebration could trigger a 2nd coronavirus wait. Welcome to the business i want to get jones and berlin good to have you with us the United States and to google i headed to Court Washington has filed an antitrust lawsuit against google accusing the company of illegally using its market power against its competitors the government says google has borge its success by paying a mobile phone makers and others to make it the default search that engine google controls about 90 percent of global web searches its the biggest challenge the u. S. Has launched against the Tech Companies and a landmark case against microsoft and that was back in 1998. So lets get some analysis on this now from our financial correspondent Chelsea Delaney in frankfurt chelsea. Please tell me i mean so what exactly is illegal about googles business model. Its no surprise that google is seen as a monopoly here but what the government is alleging is illegal is the way that google has attained that status and how its really defended it so the Justice Department has looked at googles relationships with other companies and how they sort of strong arm these other companies and to making google the only browser available for customers they looked for example googles relationship with apple and apple has a has been taking about 2000000000. 00 a year from from google to be the only and the primarily primary predawn loaded browser on google on apple i phones so theyve looked at just sort of the way that that apple is forcing people to use googles using forcing people to use these search browsers right. Google all seeing people or Companies Like apple which is another giant of course i mean that is quite something with google saying about all that. Well google is obviously defending itself they say that customers want to use google that they really have other options and that its just really up to customers to be using it it also is a difficult legal case for the u. S. Government because usually in a case like this you have to prove that a customer has been harmed that theyre getting price gougers and a lot of these services are free so it is quite difficult and if google loses this battle which im sure will go on for quite some time what does that mean for the company. It could really mean and for idea of Different Things the worst Case Scenario is that the government which forced to go to break up or to sell off parts of its business they could also be forced to stop doing these exclusive contracts with other companies weve seen this already play out a bit in Europe Europe has already brought 3 antitrust cases against google and find them about 9000000000. 00 but it hasnt really forced google to change their business yet just doing it in front of the to thank you so much for that. And ill do some of the other Global Business stories making news. Britains borrowing rose to the highest level on the record in the 1st half of the Financial Year as authorities spent billions of pounds to prop up an economy ravaged by the coronavirus pandemic Public Sector net debt is now over 170 percent of g. D. P. Thats the highest level since 1960. After years in the making you stated reach to reform their Agricultural Policy it will focus more on Environmental Protection 20 percent of the farm subsidies will be earmarked for organic farming or agroforestry the Agricultural Policy as a whole makes up a 3rd of the u. S. Budget. Airline Cathay Pacific says it will slash a quarter of its workforce as it grapples with the fallout from the pandemic 8 and a half 1000 jobs are to go the bulk of them at the Airlines Hong Kong based company will also shut down Regional Airline cathay dragon effective immediately. Thailand has accepted its 1st tourist since its close its border 7 months ago a group of 39 Chinese Tourists from shanghai have landed in bangkok they will have to complete a strict 14 Day Hotel Quarantine in the capital. Australias relations with its biggest trading partner and thats china are at their lowest point in decades some people down under see this as an opportunity to cut to the overreliance on china but are they being too optimistic. Australias call is unwarranted in china their biggest market Chinese Power Companies and steel mills are canceling orders. Chinese ports are also apparently turning away australian shipments following orders from authorities. The motive behind these moves is not yet clear critics say the timing isnt surprising coming just days after australia took part in a meeting of the quad in tokyo a grouping that also includes japan the u. S. And india theyre concerned about chinas growing influence and assertiveness in the region. The court has a positive agenda to diplomatic nitwit that assists us as democracies to align ourselves in support of shed interests we believe in a region governed by rules not. Some australian politicians say its high time to cut their economic over an alliance are in china after all china is australias biggest trading partner by far trade between the 2 countries amounted to 235000000000 dollars last year trade with europe the 2nd biggest partner accounted for just 127500000000. 00 followed by japan and the americas. Earlier this year china slapped an 80 percent tariff on barley suspended some australian beef imports and launched an anti dumping probe into australian wine imports and chinas ambassador to canberra threatens that if the mood changes from bad to worse chinese citizens could be convinced to boycott australian products. Well for more lets bring in. Whats going on there lets china off the. But monika there is no straightforward answer to this unfortunately because even australia is actually investigating whats happening there because all these steps have been taken on workable orders theres no clear announcement to that effect but yes one of the things that people do mention is that its not its not really uncommon for china to act in the in a way its acting it does put trade restrictions to support domestic industry the domestic coal industry at this point is actually suffering from a lot of supply of blood so it could be that but then there are others who served in what about a quarter than even australian cotton is not wanted in china and they point that perhaps its because beijing is annoyed with the australia whether its to do with meeting taking part in that quad meeting you just heard in that report or even a leading their call for an investigation in the origins of covert 19 right to be annoyed is one thing but can china actually of all afford to fall out with a Major Economic partners such as australia and the region. Well not really and thats the reason why the analysts are the experts i spoke to there not a lot what it about this i mean they point to similar measures taken by china in the past and they havent really resulted in a major drop in trade numbers this year itself or china the share of exports to china have actually increased basically the rest of the world so theyre not really put out there but what they really feel is that in the longer term perhaps australia should actually think of reducing its reliance on the on china because china is moving towards a more selfsufficient economy it is looking at a green a group better perhaps cool and all would have no no place there and also china china has mentioned that it could actually source iron ore is even from africa so that could be something in the long term but in the short term theres really not much to worry about there so a lot of saber rattling right now but no big deal political and economic shift in the region Ashutosh Pandey from t w thank you so much for putting things into perspective for us. To india now where the number of new corona virus infections has been on the decline since september but that could change with the festival season now getting underway experts are warning that crowded markets could trigger a 2nd ways. I can tell you. That this market near mumbai friends of people are preparing for the holidays ahead. When india went into lockdown in march it was a human catastrophe millions in the informal economy were left jobless penniless and destitute almost overnight no one wants to go back to that. Now by road people have to come out and do their jobs because. You do the business youre drawn to earn money if you dont run you cannot feed your family 6 that is a very precarious question if you had a 3rd of the infection you cant feed your family so that i grew up not i mean you are dying Situation Police are out fining people for not wearing their masks properly. But this scooter rider was clearly low hanging fruit. Theres no such thing as social distancing in crowded urban centers like this and on packed public transport mosques seem to be optional. 6 some of those whove returned to work say they feel safer there so knowledge for instance was hospitalized after catching the coronavirus but the mother of 2 had to return to work after the lockdown exhausted the familys savings. Heard from many of her my family my husband and all those told me not to return to work in a situation like this town life is the most important thing then i came here and saw the precautions that will being taken its not as if we can just stay at home for so many days work is important and we need the money to be done. You poor countries have generally suffered worse economic pie in the developed countries. The i. M. F. Projects indias g. D. P. Will contract by more than 10 percent this year the biggest slump of any emerging nation. The world bank predicts 150000000 people could fall into extreme poverty worldwide. And is a reminder of the top story this hour washington has filed an antitrust lawsuit against google accusing the company of illegally using its market power against its competitors the Court Challenge could lead to a breakup of the internet. Thats a Business Update here in the w from the in the team thanks for watching. Combating the corona pandemic. Where does research stand. What are scientists learning. Background information and news. Hour carona update. 19 special next on d w in mexico many pushed. Us right now right now Climate Change if an awful story. Faces lifelessly way from just one week. How much will it really get. We still have time to ask. What it says. That subscribes like. How dangerous is the air around us. Every time we speak every time we laugh or say. We admits particles and once theyre there they linger we know that this is a key way that corona virus can spread. Scientists are still sussing how dangerous these doses of airborne virus can be and what we can do to avoid them. Opening a window is one way to keep the air fresh but by keeping the air moving with systems like air conditioning or we decreasing the risk or merely spreading it. What do we need to do to breathe easily indoors. And this is the covert 19 special who walk into the show and. Open the window its the one piece of advice were all hearing now thats a bit more complicated in the winter doesnt work in all rooms and certainly doesnt work on airplanes theyve used in the industry says cabin air is sufficiently filtered and circulated to some experts say questions remain. For air travelers social distancing already starts to get difficult at the boarding gate and it gets even trickier on the plane spacing out just isnt possible unless you can afford to buy an extra seat. With only 50 centimeters distance between each person the risk of infection is obvious and healing the droplets in aerosols from an adjacent passenger seems unavoidable scientists have long been aware of the dangers of infection on planes mostly because of studies of other coronaviruses air is not displaced in aircraft inlets in l. Its hard to small for that cabin air can only be mixed. Over at the Hamburg University of applied Sciences Professor Dieter Schulte says viruses may stay in the cabin air for up to 15 minutes exposing passengers to infection risk. Going to the Aviation Industry makes 3 climbs firstly filters an aircraft to make the air as clean as an operating room and secondly the air is completely exchanged every 2 to 3 minutes thirdly the air only moves from top to bottom in the cabin all 3 are just not sure. It could be that current Safety Standards and filtration techniques are not as good as many may think meaning the possibility of catching coronavirus when flying could be more up to chance than anything else. Lets take a closer look at ventilation and the virus joining me now is paul linden hes professor of fluid mechanics at Cambridge University paul its good to have you on the show some of the obvious question winter is approaching in northern in the Northern Hemisphere whats the best thing that someone should keep in mind about ventilation in rooms well its obviously a challenge the winter because. You have to see is to close up buildings and ventilation is reduced to keep warm so the best thing to do is to make sure that as much ventilation as possible is achieved open a window he possibly can. And if you have a mechanical system make sure as much fresh air coming in as possible what about fans what if i just have fans that are standing around the room does that help keep things ventilated is that help me at all no it doesnt it will just mix up whats already there and thats probably not the best thing because if there is a virus particles in the air in the air and sterile around your chances of breathing them are increased so i wouldnt recommend using fans ok so the best option and it seems to be is the keep the window open even though its when its winter early to open a periodic lee. Of course thats going to mean that people are going to be colder rooms are going to be colder is this really a choice now that we have between Climate Control and being safe with the virus is it such a black and white choice pretty much i would say it is thats right and. Its well known that during the spanish flu. Classes in the u. S. Even in the midwest in the winter were held outside so. I think it is a it is a tradeoff between staying warm and staying safe. Thats going to mean quite a change for the industry the Climate Control. Air conditioning industry. Yes absolutely well and i mean conventional systems use a certain amount of research collected air and they supplement that with some fresh air when its pumped so dr through the building and again you want to make sure that the proportion of fresh air is as high as possible and that will in a Climate Controlled situation mean of course more energy is used to keep that to warn that iraq. So it will be a tradeoff they have between between energy costs and. The amount of fresh air that you can provide. And then one of your studies you mention Carbon Dioxide of course being an indicator as well does this mean that we can expect that Carbon Dioxide as yours will be a more common feature in rooms yeah i believe thats a very sensible thing to do Carbon Dioxide is essentially within a building produced by people exhaling. And so levels that are above the background outside values of about 400 something past a 1000000. Indicated indicative of. Its being in someones lungs and then breathed out again and so measuring that gives you an estimate in fact you can relate the risk of infection directly to the concentration of come and help me understand your picture when i interim breathing speaking laughing with without a mask what am i seeing and what are you seeing if youre able to see these these plumes or whatever you call them. Yes so from an individual you give off heat. Every person gives off about 80 watts bit like a blot fairly bright light bow and that heat rises from your body in what we call a turbulent plume. And that will rise up to was the ceiling and you know that in most rooms the air in the ceiling is warmer than the air in the floor also plumes arise from equipment like a computer or other things and and when you breathe out you also breathe out warm air and that warm air is directed of course in in Different Directions so if you breathe through your nose its directed downwards if you breathe if you talk and is Goes National was horizontally and of course it depends on sounds that you make some sounds inject air further and do you speak the further it goes so theres a very complex dynamical process going on and its invisible thats quite right we have techniques that make it possible to visualize this and we use those techniques which essentially look at the way the refractive index of the air changes its a bit like watching the a shimmer above a toaster you look at your toaster one that you see that is the same process and we can visualize that we can see where this goes and what we do see is that if you wear a mask for example that the air that you exhale even when youre speaking were even blocking and coughing tends to basically leak around. The edges of the last nights sleep around the nose where it doesnt it properly and that then gets carried out with the plume in your body and thats a good thing so that so wearing a mosque generally confines your breath to to be taken out with the hot air rising from you is more complicated if you. And there around on the other hand because then you have a wake behind you just as you would. In a way behind a ship and and that way you carry your breath in the wake behind you so you can spread it around quite significantly so those flows are much more vigorous than the flow produced by your ventilation system an issue very close to say an open window you probably dont perceive the around you so those floods are a run to the weak the flow from your heat from your body when you speak when you breathe in and out theyre much stronger and theyre and so its a complicated interaction between those flows and the general tendency of partying to rise and and to be taken in and out through whatever openings you have in you in the building or i will have to leave it there for now it sounds like a fascinating time to be a professor of fluid mechanics paul linden joins us from imaging averse they thank you very much thank you. And now its time for viewer questions its the part of the show where our science correspondent Derek Williams answers the questions youve posed that tore you tube channel over there. If a number of vaccines come out of the same time would it homy to take multiple different vaccines. In light of how quickly things are moving on the vaccine from this is an important question to ask for example there have been reports that china is apparently already giving tens of thousands of doses to people there of vaccine candidates that havent yet completed widespread safety and efficacy testing observers are seriously alarmed by that because it sets the stage for a range of frightening possible scenarios what happens for instance if the vaccine doesnt prevent infection as well as hoped and and those people have to be vaccinated again at some point with other candidates could that be dangerous for them the short answer is once again we dont know but possibly vaccines can have adverse effects even when just one is administered thats why theyre tested so widely before being approved for the general public and with dozens of different candidates out there based on a number of different platforms there are a lot of possible combinations with a potential to go wrong if people start being given more than one vaccine or were given them in haphazard undocumented ways until we actually do it theres no way to rule out that giving vaccines in combination or in a series could pose a danger which is why its best to exhaustively check every vaccine candidate for safety and efficiency in advance so that in a best Case Scenario we only have to vaccinate everyone once. Or science correspondent williams there and before we let you go heres another look at how people are adapting to life in the pandemic in this case by socially distancing within a crowd lives. Music has returned to Rio De Janeiro but many dance floors and open air concert spaces elfish are spaced out boxes of up to 6 people each music fans there say its important for their Mental Health to be able to let loose well hopefully staying safe. And thats it for our cover 19 special we hope that you stay safe and join us next time thats watching. The. Lead there from mushrooms believe me come a shoo. In the balls how leave just. The beginning of the end to animal based products. But which alternatives work and which ones they are the. New ideas from the Global Market made in germany. 30. W. Eco. Africa. For uganda is not. The primates have taken advantage of the peace and quiet of the current virus lock down to produce a particularly large number of offspring residents in the neighboring villages are soon to me hope that these we are in a most will soon attract new tourists again. For. Even the minutes on d w. I want to see whats going off and all of the food emerges that you dont want to have to go to fight it. The sharp microscope that have been bad the fall there will come back at better and better over the years we will have a bad fall for example a certain viral infection but both the molecular detail and therefore a lot of it was a modified much more even if i were to speculate about whats going on in 2050 i cant imagine that it will add to that the cause of god much better and then reduce the number of cancer cases there is the opportunity to make a much more fulfilling life because many of the features shortcomings called the faith had to counteract at the large degree at the but they are far along the field adult life. Play. Play play play. This is v. W. News live from berlin Security Forces in nigeria allegedly opened fire on protesters in the countrys biggest city. C. W. Crude records the sounds of shooting in a night time later witnesses say that people were killed thats after a curfew was imposed on the city and