New UK variant is 50% more transmissible than original strain of COVID-19

Prime Minister Boris Johnson issued a strict lockdown for England and there are concerns the U.S. is headed in the same direction.
3:07 | 01/05/21

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Transcript for New UK variant is 50% more transmissible than original strain of COVID-19
An ABC news medical contributor doctor John Brownstein. For more on this doctor Brown's day in this new UK strain we're now seeing in the US is said to be more contagious but. They've been a lot of different numbers thrown out as to how much more contagious and what that actually means so. What does the data tell us at this point. Right so the good news is that they had devastated at this I knew Jerry it is not received your entrance hostile stations and and there's got to be different terms of symptoms and outcomes so those are all good data ports there is. Preliminary data that shows that it's likely to be 50% merchants that ball so that means that it is more efficiently entering into the cells it doesn't necessarily change the dynamics of transmission notes still about our direct contact Eric hall but it will be more teachers overall and the concern we have is more transmissible parent would just be more cases which ultimately needs more hostile patience and that's so it's not a more severe barrier but the data shows us that we could lead to a bigger search and ultimately leads to really. Are buried outside milestones were sort of in his Sheehan the next couple months porch so do we need to be doing anything differently as a result wearing a different kind of mask are keeping even more distance from others that kind of thing. Right so it's still the same virus threats all the precautions we've been taking should lineup in the same way it just means that. And bar sweet transmit more efficiently so we should just doubled down on these interventions not wearing social distancing meeting we don't need to change anything specifically but we need to be more vigilant mutilation murder new dish practice social distancing we should he stay at home if we don't need to be out Iran and it working doing anything essential that is why the next couple months or so critical were waiting for the sharks in which they will work against this you're very likely does. That's me like now's the card to use the key sort of non pharmaceutical directions like mass grave social and think that's what we have our disposal today. And the UK's in a national lockdown in hopes of controlling. This new strain but we're already seeing it in Colorado California Florida and now New York State so. Are we heading for a full lockdown in the US. Yeah this is conversation you know I've had many times you've about walked down at such an extreme strategy and we know that our ports if you walk down you can control the pandemic what we're trying to keep our schools open itself where you know we can't do more to reduce our hearts are in these testing reduced -- an inch indoor dining. And we still don't have basic things don't happen national math we're waiting for that we don't the national strategy we're still waiting about so again there are things could be doing that we're not worried about walk down comes into play. Remember we have yet to keep your car the holidays you know we're we're gonna keep that in the next week irks you about point in me yet a point where we just can't do enough in transit targeted intervention. You need you look yet more widespread rock and hopefully we don't get to that point but unfortunately knee heading in the same direction of UK. I'm doctor John Brownstein sorry to hear it but thank you for being here. Thank you.

This transcript has been automatically generated and may not be 100% accurate.

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