today at six: scientists in london begin human trials of a revolutionary vaccine against the coronavirus. a team at imperial college in london are working at record speed. if it works, the vaccine could be mass produced. it means that we can make the equivalent of 2 million doses in the volume of a litre. so, if you imagine a litre bottle of lemonade, that would have 2 million doses in it. it's one of more than a dozen trials around the world. also tonight: 4,500 jobs set to go at swissport — a bleak future for baggage handlers and check—in staff throughout the uk. jordan walker—brown was tasered and he'll never walk again — latest figures show one in five of those targeted by police is black.

not a swimmer in sight — you'll be able to go to the pub, but not to a pool. what's the logic behind the new lockdown rules? and the hottest day of the year so farfor many, and the hottest day of the year so far for many, but advice tonight about how we should live in the heated during a pandemic. coming up on sportday later in the hour on bbc news, it's another busy night in the premier league. the champions—elect liverpool can take another step towards the title. health experts tell us there is only one guaranteed way out of the coronaviris pandemic —

and that is a vaccine. the bbc has been given exclusive access to human trials of a vaccine being developed by scientists at imperial college in london. their approach has never been tried before. it means only a tiny dose is needed to be effective. if the trials work, the researchers say they should have enough vaccine available to immunise a0 million people in the uk by the middle of next year. here's our medical correspondent, fergus walsh. coronavirus has transformed all our lives. and although restrictions are easing, there's only one certain way out of the pandemic, one way to protect us all from the virus, to return society to normal, and that's a vaccine. never has science responded so fast to a global health threat. it usually takes years has been done in months. there are now more than 120 coronavirus vaccines

in early development. 13 have begun human trials — five in china, three in the united states, two in the uk and one each in australia, germany and russia. we'll need several to work if there's to be enough doses to protect 7 billion people on the planet. after oxford university, now imperial college london is the latest to begin trials. kathy, who's 39, is one of 300 volunteers who will receive the imperial vaccine. she'll get a second booster dose in four weeks. why did you volunteer? i think it came from not really knowing what i could do to help, and this turned out to be something that i could do, and understanding that it's not likely that things will get back to normal until there is a vaccine, so wanting to be part of that progress as well. if the safety trial goes well, a further 6,000 volunteers will be immunised in the autumn. trials might also need to happen

overseas, in virus hotspots, because that's the only way researchers will know for sure if it offers protection. i wouldn't be working on this trial if i didn't feel cautiously optimistic that we will see great immune responses in our participants, but there's still a long way to go to evaluate this vaccine. this is a really unusual vaccine. the synthetic genetic code it contains should instruct muscle cells to produce the spike protein found on the surface of coronavirus. that should prompt the creation of antibodies, and that army of antibodies should remain on guard in case of future exposure to coronavirus and, if it works, prevent infection. because it's all created artificially, with no need to grow any virus, the vaccine could be manufactured on a huge and concentrated scale. it means that we can make the equivalent of 2 million doses

in the volume of a litre. so, if you imagine a litre bottle of lemonade, that would have 2 million doses in it. so, when you want to start making vaccines for the world if this is successful — and that's still a big if — it makes it so much more tractable because you don't have to build a factory the size of several warehouses. imperial college say they could have enough doses ready to immunise a0 million people in the uk by next summer, but trials must first show the vaccine is safe and effective. fergusjoins me now. you have reported on the oxford trial, now imperial, you told us about the others around the world. how do we work out who gets which vaccine? starting with the uk, if either vaccine trial to is successful then they should be enough doses to immunise people in

britain, with priority for health ca re britain, with priority for health care workers and the most vulnerable. 0xford care workers and the most vulnerable. oxford university has signed deals with the farmer giant astrazeneca to create 2 billion doses of its vaccine, and a further uk, the whole of europe, the us and india. and the imperial vaccine can be quickly scaled up, both have iii"? ' ’ funding. iiii received government funding. if "either received government funding. if $3 received government funding. if $ is successful, and we should neither is successful, and we should expect probably m! neither is successful, and we should expect probably most of = neither is successful, and we should expect probably most of these to that in trials, expect probably most of these it to that in trials, expect probably most of these it becomes 1at. in trials, expect probably most of these it becomes more| in trials, i we not the queue for of u* mccinefi or “’ mccines or one of the five chinese vaccines or the russian vaccine. governments in europe have that the russian vaccine. governments in europe have - that whichever works, there will be