i'm joined in studio by our science correspondent derrick williams thank you for being here. we saw the piece but but can you just explain for us how exactly do these sorts of gene therapy treatments work ok well gene therapy treatments are are different than than conventional treatment treatments in the sense that they're they're not pills they're not they're not things that are that are going to be taken on a regular basis it's a single therapeutic step which is the injection of what are basically viruses into your body now the reason that they're injecting those viruses into your body is because a person who has a genetic disorder has got a broken gene they've got a faulty gene somewhere that codes for a more or less important protein and these protests if you get a faulty gene you're going to end up having a faulty protein protein so what you need to do is swap out that code for something that's intact and so what these viruses do they've been genetically altered to carry an intact version of that particular gene and if you get them into the body's cells then the virus in

science correspondent derrick williams david welcome now health officials in china are saying that they're identified the virus behind this outbreak but it's one that's related to sawyer's how serious is this well to some extent you could you can see that it might seem serious on the surface because you know the sars virus obviously caused a lot of damage in fact and back in 2000 to 2003 infected over 8000 people killed upwards of 700 somewhere between 7 and 800 people so it's in this family of what are known as corona virus as they're called that because of the way that they look they resemble the sun they have this corona around them of of of various sort of things that are leaving the envelope of the virus or extended. around it now corona virus is blown to a family of viruses that cause everything from common colds to much more severe respiratory disorders for example sars or also related to mers middle eastern respiratory syndrome now the new one this latest one what seems actually positive about it or not as bad as the sars virus is that it's not as far as they can tell so far been t

joining me now is huge obvious signs correspond to derrick williams welcome adenike within the space of last few weeks we have 3 people 300 people who were infected with this virus 6 people have died how dangerous is this new grown up iris well it's a group the coronavirus is belong to a group of viruses that up until now around 7 different strains have been identified that in fact human beings and they range from things that cause sometimes like the common cold to stars or mariners which are actually quite deadly diseases i mean mers kills more than 30 percent of the people who contract it sars kills about 10 percent of the people who contract it so for this disease doesn't appear to be nearly that lethal not that deadly the numbers of people who have died are keeping within a fairly small group. and if people don't have compromised immune systems it appears to not affect them too badly so how deadly is it it is a core can be deadly in its current form how deadly could it become that's another question entirely and it's already spread to 3 of the asian countries and 2 other countrie

the double science correspondent jessica williams has been on the story since the 1st cases were reported derrick welcome does it look like people have enough information on what precautions to take well they w.h.o. has posted an extensive list of things that people can do to protect themselves interestingly the consensus is still very much out on the masks whether or not they actually do protect you but the come these commonsense measures include things like for example avoid close contact with anybody who's suffering from acute respiratory infections or wash your hands frequently particularly if you had contact with someone who's been sick avoid unprotected contact with farm animals if you can if you possibly can practice cough etiquette a very very important thing when you're in public and you have to call make sure that you catch that cough in a handkerchief or a tissue of some kind so they're not yet issuing any really strict rules for travelers but they're saying if you are traveling abroad and if you've been in one of these affected areas and begin to feel ill please contact the people hea

running back derrick henry became quarter back throwing a touchdown pass for corey davis in the titans‘ 28—12 win. tonight, kansas city play houston and green bay host seattle. serena williamso send a message of support to the victims of the australian bushfires. she won the auckland international and will donate her prize money to the relief effort. it's a significant win for williams — her first in three years as katie gornall reports. the great champions are those who endure when they are tested. in two decades of dominance, serena williams has seen it all. two and a half years ago, she nearly died giving birth to her daughter, alexis. understandably, the road back to the top has been long and uncertain. williams has walked out into five finals since becoming a parent and lost them all. early on, she seemed to be heading down that same path as her compatriot, jessica pegula, raced into a 3—1 lead but then as we have seen time and again over the years, williams gathered herself, hitting back with her customary power and precision. after wrapping up the first set 6—3 in auckland, williams broke early in the second and stayed out in front. eventually, she closed out the set