and you are still a spreader crowds and you are still a spreader or even a super spreader, crowds and you are still a spreader or even a super spreader, those are things to really worry about. those are some of the things that will be looked at by the committee right now. this is new information. we didn't have that even a week ago. and we're still not certain how much that actually we don't even know the actual incubation period of this disease yet. sars was to — 70s. this looks like it is longer. you mention stars. when it comes to the comparison in this business of it incubating and it not being obviously they are but still spreading when it's not obvious there, that is different from sars, isn't it? and it's also different from a baller? it's very different from a baller? it's very different from a baller? it's very different from a baller. it baller is only transmitted by blood and bodily fluids. not by ear. sars was a respiratory disease. i actually

think it's very similar to sars in many ways. it is actually part of the same family, we might say it has a bad family heritage of sars. but i am quite worried about the secondary spread in other countries. that's what i will be watching most closely and i'm sure that's what the who, the cec and your national health service will be watching closely. one of the most recent points is the mortality rate, which are said to be quite low in percentage terms. those who have it, i think only two or 3% are sadly dying off it. do you take any are sadly dying off it. do you take a ny co mfo rt are sadly dying off it. do you take any comfort from that? no. first of all, i'd be very careful not to ascribe certainty to the data we have on mortality rates for two reasons. one, as the disease was longer, a surveillance system gets better. we pick up more diseases

earlier and the denominator dilutes out and mix the death rate look lower. likewise, people have been in the hospital for weeks lower. likewise, people have been in the hospitalfor weeks now and u nfortu nately have the hospitalfor weeks now and unfortunately have got more sick and are perhaps dying as a different rate. so there is upward and downward pressure on that number. i wouldn't take it seriously yet. at the end of the outbreak, if it turns out to be one or 2%, that will be a lucky break. but i wouldn't take too much confidence thatjust yet. 0k, very good to have your thoughts. thank you very much for on. thank you for having me. now it's time for a look at the weather with ben rich. hello. it has been a day of big changes in our weather. we have had a band of rain sweeping eastwards. you can see the bright white cloud on the satellite picture, that is what brought the cloud and behind it is the speckled cloud, indicative of cloud and colder air. this evening, the rain will clear from eastern england, but these showers will rush

in from the west, some will be heavy, thundery and wintry across the northern half of the uk. not only over the higher ground, still at relatively low levels. certainly the potential for ice during tomorrow morning. showers will continue to pile in from the west during the day, wintry across the north and west of the uk. further south, any showers were largely fall as rain. eastern scotland and england should stay predominantly dry. more sunshine than of late, but windy and chilly. a cold start to the new week with snow and ice for many of us, then a new change turning mild at later in the week. hello, this is bbc news. the headlines — the death toll from the coronavirus in china rises to 56 — officials warn the spread of the virus is accelerating

and the country faces a "grave situation." as the united states announces plans to fly some of its citizens home, the foreign office is urging britons to leave the province where the outbreak began, and advising against further travel there. a member of the grenfell tower inquiry panel resigns over links with the firm that supplied the tower block's deadly cladding. now on bbc news, it's time for sportsday. hello, and welcome to sportsday. i'm gavin ramjaun. england set south africa a record test run chase, as they look to clinch an emphatic series win. harry maguire scores his first goal for manchester united in their fa cup demolition job on tranmere. and the fairy tale run is over for teen coco gauff,

at the australian open, as several other big names make it through to the quarterfinals. hello, and welcome to sportsday. let's start with the cricket in johannesburg. and england have set south africa a record test run chase, to claim victory in the fourth and final match. at the end of day three, englad were ahead by a65 runs, with captainjoe root‘s half century the pick of the performances with the bat. patrick geary reports. this is trumpeter billy cooper's last test after 16 years of playing for england. was he soundtracking the end credits already? this is vernon philander‘s last test for south africa and he didn't

last long this morning, more than 300 runs behind. no point looking back thought quinton de kock made them wait and chase but it's difficult to get away from mark wood. that was so quick it not only bowled him but broke one of his bales. wood smashed 35 yesterday, now five wickets to go. south africa 183 all out. england could have made the south africans bat again, but instead decided to have a go themselves to further stretch tiring limbs. south africa stuck at it, to their credit. that noise will not have helped the migrainejoe denly has been suffering, and headaches around jos buttler‘s batting are not going away. soon england were batting on a cushion of 400 runs, a lead that should secure the series. the hard work has been done, and they still have two

days to finish the job. both manchester united and city enjoyed comfortable wins in the fa cup fourth round today. united gave league one tranmere a 6—0 hammering at prenton park. six different players on the scoresheet for united, as they put their poor league form to one side in relentless fashion. craig templeton reports. tranmere might have had lofty ambitions after knocking out premier league opposition on thursday, but all the pre—match talk had been at ground level, and the state of the pitch. ole gunnar solskjaer said united could have no excuses about the playing surface. his side were clearly listening. good hit, and what a terrific goalfrom harry maguire! not a bad way to score your first united goal. and this was not a bad way to make it two. this trick and hit from diogo dalot was not in the script. jesse lingard then put forward his contender for goal of the match. everything they hit is going in!

and if you haven't scored in six years, this was looking like the time to do it. step forward, philjones. and to round off a breathless first half, a goalfor a more regular scorer, anthony martial enough to raise a smile. when five goals have already gone in, you can do without your goalkeeper doing this. mason greenwood, 6—0, united unable to miss. so with all the noise that has surrounded their league form, united were, for today at least, pitch perfect. the holders manchester city enjoyed their afternoon at the etihad, with a dominant 4—0 victory over fulham. the championship side were reduced to 10 men early on, and never recovered, as pep guardiola's men cruised into the fifth round. our sports correspondent joe wilson was watching. left of screen, the fulham captain tim ream wearing, notice his shorts, number 13.

an experienced american international set for a big game. off they went for 90 minutes. ream only lasted six. a tangle with manchester city's jesus, and the referee immediately confirmed it was a penalty. he also indicated ream's game was over, and effectively, so was fulham's. and no mistake from gundogan with the penalty. the question already became, how many? 2—0 versus ten men thanks to bernardo silva. would you swap places with fulham's manager, scott parker? pep guardiola with a warm shoulder, good luck. if fulham play here next season, and they are pushing for promotion, they will aim to keep they will aim to keep 11 on the pitch. as much as they saved, as hard as they tried, city overran them in the second half. two goals forjesus. every game is a learning game. there could be an upset on the cards at league one shrewsbury, where they've cut the gap against premier league leaders

liverpool. 18—year—old curtisjones, who was liverpool's hero against everton in the last round, struck again to give them the lead. and just 27 seconds after the interval, donald love scored an own goal to make things really difficult for shrewsbury. but yasser larouci brought down josh laurent, and substitute jason cummings' penalty got shrewsbury back into the game. and then, ten minutes later, he went on to level the match. there is just ten minutes left for them to hang on for a replay, or possibly even win. can you imagine that? 15 matches in the women's fa cup fourth round to tell you about today. liverpool women the big winners of the day, thrashing championship side blackburn 8—1. tottenham also dished out a thrashing, they beat women's national league team barnsley 5—0. and arsenal got the better of west ham, winning 2—0. find out the results from all the other games on the bbc sport website. there's been a big surprise in the scottish premiership, with bottom club hearts beating rangers 2—1 at tynecastle.

second—placed rangers were looking to close the gap on leaders celtic to just two points, and took the lead just after the break through ryan kent. but the home side equalised through steven naismith before debutant liam boyce snatched the winner with just seven minutes to go. the game between st mirren and aberdeen finished goalless. over to the australian open now, where 15—year—old coco gauff‘s fairytale run at the tournament is over. ashleigh barty, though, is still carrying the hopes of the home crowd, while roger federer and novak djokovic are both into the last eight. john watson is in melbourne. roger federer is into another australian open quarterfinal, not the most straightforward, once again, as he came through in four sets. we know that roger federer was given a real test in the previous round against the australian john millman. but he came through in four sets against marton fucsovics.

federer chasing what would be a seventh australian open title. the defending champion at novak djokovic looking very comfortable as well. he came through in straight sets, such is the serb‘s dominance on the hard courts. he is only lost three matches here in the last ten years. in the women's draw, ash barty has reached the quarterfinals. she did it the hard way, she had to come through over three sets against alison riske of the united states, looking a little uncomfortable at times out on court, perhaps the expectation on her shoulders this year starting to tell, as she attempts to become the first australian to win a singles title here in 42 years. a lot of expectation, as i was saying, on her shoulders, but with every win, that expectation grows. and a huge amount of love and support, as you can imagine, from the australian public for ashleigh barty, the world number one. so just what is it that they love so much about her? i've been speaking to jacqui, who has been charting her progress.

the australian public have really got behind her, because it has been such a long time since we have had a number one. she plays the game so beautifully, such a classic game that she plays, she is so amazing to watch. we'll try to get behind her as well, because in the past we have had nick kyrgios our number one ranked player, who plays such a different game, and has such a different personality, so she is really unique, such a kind person when you talk to her. she really thinks about everything she says, she is just a great ambassador for australian tennis. what a story it would be if ash barty can win the title this year. but coco gauff‘s run has been ended after impressive victories against naomi osaka, the defending champion, and before that, venus williams. the fourth round one step too far for the 15—year—old, so much expectation already on her shoulders, but surely a grand slam champion in the making.

we are starting to expect so much from gauff because she has shown us so much, she has been incredible in big moments, she has so little experience and she has approached those situations pushing through as if she is a real veteran. you consider the win against naomi osaka, which was huge, beating the defending champion and world number one, and then trying to come back and take out a tough competitor, it was just a little too much to ask. the moment got to gauff a little bit, and she struggled to adjust and recover, which is perfectly natural for a 15—year—old. she has a game that is bigger than a is—year—old's, but i expect her to continue to learn from this as she has from so many of her experiences. surely just a matter of time before we see coco gauff in a grand slam final. plenty more excitement to come tomorrow, not least because we have

nick kyrgios in action against rafa nadal. no love lost between these two, and when nick kyrgios takes to the court, it is never dull. it is always box office with the australian. we can expect more fireworks tomorrow, you match you will not wa nt to ta ke tomorrow, you match you will not want to take your eyes off. rugby union now — and the premiership champions saracens were heavily beaten in their first league game since being relegated for salary cap breaches. they lost 41 points to iii, at harlequins... the win moving quins up to 6th in the table. adam wild has more. saracens are, for the moment, a club in confusion. relegation is a certainty, but the future of their players remains much less certain. punished severely for the salary scandal, now harlequins seemed intent on making them pay once more. it took them little over a minute to score the game's opening try.