to put the president s son on the stand. we re live outside court with the latest well, as former president trump said, to give remarks, this hour. and shortly after that, he s gonna be meeting with his probation officer. that is ahead of his sentencing next month, we have new details on the meeting and what it could mean for his conviction and is run for the white house. and some positive results from a combo covid and flu vaccine, a first of its kind so when is it going to become available? we re following these major developing stories and many more all coming in right here to cnn news central right now hunter biden s defense team is presenting their closing arguments to jurors and accusing prosecutors of trying to do the jury, the president s son faces three felony counts of illegally purchasing and possessing a gun in 2018 while abusing or being addicted to drugs? biden has pleaded not guilty to all charges last hour prosecutors walked jurors through evidence that they
joining us now from new york isjohn moore. he s a professor of microbiology and immunology at weill cornell medicine. it s wonderful to have you on the programme, professor. in the first instance, iam programme, professor. in the first instance, i am sure many in our audience are wondering, why do we need this? the boosters seem to be working quite well against 0micron, certainly, and from the data, the early data, 0micron may not be as deadly as delta. we early data, omicron may not be as deadly as delta. early data, omicron may not be as deadly as delta. we don t know if we need this, deadly as delta. we don t know if we need this. but deadly as delta. we don t know if we need this, but one deadly as delta. we don t know if we need this, but one of deadly as delta. we don t know if we need this, but one of the deadly as delta. we don t know if we need this, but one of the ways - deadly as delta. we don t know if we need this, but one of the ways we i need this, but one of th
john moore is a professor of microbiology and immunology at weill cornell medicine in new york. he says the modified vaccines could become important in a worst case scenario in which the omicron variant mutates to become as lethal as the delta variant. we don t know if we need this, but one of the ways we will find out if we do need it is to test it, to see if it does give a superior immune response against omicron and any future omicron like variants. so that s one part of the need for making a decision in future months. the other is the trajectory of the pandemic at that time, because this kind of variant specific vaccine would not be available for the public to use in any country before mid to the the end of march at the earliest, so what will be the state of the pandemic be at that time?
find out if we do need it is to test it to see if it does give a superior immune response against 0micron and any future 0micron like variants. so that s one part of the need for making a decision in future months. the other is the trajectory of the pandemic at that time, because this kind of variant specific vaccine wouldn t be available for the public to use in any country before mid to the the end of march at the earliest. so what will be the state of the pandemic be at that time, and how does this type of variant vaccine perform? and then governments can make a decision on whether to roll it out or not, but it s an exploratory trial and that s worth doing. it s really hard to know the future of the pandemic. we could see, for example, a variant arise from 0micron that is more dangerous than 0micron. it could acquire the lethality that we associate with the delta variant.
welcome back to all of you watching us here in the united states, canada and and the world, i m kim brunhuber. this is cnn newsroom. global health authorities say looser restrictions, variants and low vaccination coverage are putting europe at risk for a new wave of the pandemic in august. case numbers are already rising in several european nations in the last week. infections rose 10% but a new german study finds mixing different kinds of vaccines can provide strong protection against the virus. researchers says a dose of the astrazeneca vaccine and mrna vaccines which is pfizer and moderna can provide a superior immune response. this idea of mixing and matching, it seemed at first it was being proposed out of necessity. now it might actually be preferable. what s behind this? reporter: yeah. absolutely, kim. this is the strongest