Here’s how coronavirus contact tracing apps work

CNBC’s Contessa Brewer reports on how contact tracing apps work, and one that the Nevada Coronavirus Task Force is using. For access to live and exclusive video from CNBC subscribe to CNBC PRO:

» Subscribe to CNBC TV:
» Subscribe to CNBC:
» Subscribe to CNBC Classic:

Turn to CNBC TV for the latest stock market news and analysis. From market futures to live price updates CNBC is the leader in business news worldwide.

Connect with CNBC News Online
Get the latest news:
Follow CNBC on LinkedIn:
Follow CNBC News on Facebook:
Follow CNBC News on Twitter:
Follow CNBC News on Instagram:

For info on the best credit cards go to CNBC Select:



All the Admin Templates You Could Ask For.

2M+ items from the worlds largest marketplace for Admin Templates, Themes & Design Assets. Whether that's what you need, or you're just after a few Stock Photos - all of it can be found here at Envato Market.

Related Articles


  1. That digital COVID tracing app is an excellent idea, but here is how it needs to be implemented. Make it a law that anyone who enters a store (with the exception of grocery stores or medical stores), needs to show or have detected, that tracing app on their phone before they will be allowed into a store, and that the app shows they have not come into possible contact with anyone infected. This would allow all businesses to re-open and these lockdowns ended. Now if the app indicates a possible contact with an infected person, the app will be put into 'Caution'-mode and that person will not be able to enter any of the stores that require the app to be out of 'caution'-mode. Only after a local testing site has tested the person to be free of COVID, will the app then be cleared of the 'caution'-mode by the testing center, and then that person can go about shopping again.

  2. Another way to spy on civilians…no thanks. It is sufficient to practice physical distancing, good hygiene, disinfection protocols, and limit social contacts.

  3. Si pretendes contar cib un atajo razonable trata de buscar la web de Ana Cikensel, y despues leela completa, por otra parte quizas te daras cuenta que puedes terminar embarazada dentro de 60 dias siempre y cuando sigas los principios.

  4. Nobody is going to go for this. Please remember that the survivability rate from COVID-19 is 99.997%.

  5. C = 3
    O = 15
    R = 18
    O = 15
    N = 14
    A = 1
    6 66

    Here is wisdom. Let him who has understanding calculate the number of the beast, for it is the number of a man: His number is 666. ~Revelation 13: 18

  6. No won’t download or open app, I am not going to live in fear or controlled. This wasn’t done for flu, Ebola, H1N1, viruses, what’s next putting a chip on our brains and body.

  7. People saying no to this is like 'I don't give a fk if I've been in close contact with a confirmed COVID-19 patient. I care more about my privacy.' Next time when you need a surgery, tell the doctor you're not gonna do the surgery unless they let you keep your clothes on the whole time during surgery since it violates your privacy.

  8. You will never, ever see me with this. As God himself as my witness, I will never allow this in my life or to effect me or my family. F you, and F the media covering and spreading this.

  9. What about people who cant afford smart phone though? CNBC did a news story that POC and people with low income are the ones that most affected by the virus. So is there a way for them to contact trace for their own safety?

    That also brings up a point about the elderly as well. since some of the senior citizens don’t use smart phone are at the most risk.

  10. What a crock of crap! CNBC would think this is a great app to have. But then again, they are a socialist network helping to create a socialist country! NO THANKS! It didn't work for Stalin as the social Russian nation's economy collapsed! Too many people fought for this country to be free from socialism, marxism and communism. Let China use the app because they want control. But this is a socialist mobile app! Refuse to use it! Not here! Not in this country! Not in this Nation! No thanks!


  12. Are any tracing token apps even effective means of information gathering? Too many variables and requirements.

  13. China already did this 5 month ago , that is why they can control COVID that quickly.

  14. Her explaining the app does not make me any more confident that it works she seems more confused than I am

  15. You can vote your way into communism and a totalitarian system, but you can only shot your way out of it!

  16. Tell me cov 19 is not man made and about a control system beginning!
    "Is The Cov 19 Virus a Sign Of The End Of the World."
    fast forward 24 min. Take notes, Do your own research. and for the love of god wake up people!

  17. Psalm 35
    1 Plead my cause, O Lord, with them that strive with me: fight against them that fight against me.
    2 Take hold of shield and buckler, and stand up for my help.
    3 Draw out also the spear, and stop the way against them that persecute me: say unto my soul, I am thy salvation.
    4 Let them be confounded and put to shame that seek after my soul: let them be turned back and brought to confusion that devise my hurt.
    5 Let them be as chaff before the wind: and let the angel of the Lord chase them.
    6 Let their way be dark and slippery: and let the angel of the Lord persecute them.
    7 For without cause they have hid for me their net in a pit, which without cause they have digged for my soul.
    8 Let destruction come upon him at unawares; and let his net that he hath hid catch himself: and into that very destruction let him fall.
    9 And my soul shall be joyful in the Lord: it shall rejoice in his salvation.
    10 All of my bones shall say, Lord who is like unto thee, which deliverest the poor from him that is too strong for him, yea, the poor and the needy from him that spoileth him?
    11 False witnesses did rise up; they laid to my charge things that I knew not.
    12 They rewarded me evil for good to the spoiling of my soul.
    13 But as for me, when they were sick, my clothing was sackcloth: I humbled my soul with fasting; and my prayer returned to my own bosom.
    14 I behaved myself as though he had been my friend or brother: I bowed down heavily, as one that mourneth for his mother.
    15 But in my adversity they rejoiced, and gathered themselves together against me, and I knew it not; they did tear me, and ceased not:
    16 With hypocritical mockers in feasts, they gnashed upon me with their teeth.
    17 Lord, how long will thou look on? rescue my soul from their destructions, my darling from the lions.
    18 I will give thee thanks in the great congregation: I will praise thee among much people.
    19 Let not them that are my enemies wrongfully rejoice over me: neither let them wink with the eye that hate me without a cause.
    20 For they speak not peace: but they devise deceitful matters against them that are quiet in the land.
    21 Yea, they opened their mouth wide against me, and said, Aha, aha, our eye hath seen it.
    22 This thou hast seen, O Lord: keep not silence: O Lord, be not far from me.
    23 Stir up thyself, and awake to my judgment, even unto my cause, my God and my Lord.
    24 Judge me, O Lord my God, acceding to thy righteousness; and let them not rejoice over me.
    25 Let them not say in their hearts, Ah, so would we have it: let them not say, We have swallowed him up.
    26 Let them be ashamed and brought to confusion together that rejoice at my own hurt: let them be clothed with shame and dishonor that magnify themselves against me.
    27 Let them shout for joy, and be glad, that favor my righteous cause: yea, let them say continually, Let the lord be magnified, which had pleasure in the prosperity of his servant.
    28 And my tongue shall speak of thy righteousness and of thy praise all the day long.

  18. This isn't to gather your information.. it honestly does what it claims to. What it does do however.. is track the amount of people willing to engage in something like this. They're gauging the amount of idiots for future reference. That's when they'll pull the rug from under your feet.

  19. This was used in Germany and was not successful without surveillance. They found that people would get the possible positive signal and continue acting normally saying they did not feel anything, so they must be fine. Adoption was high since they have very tight privacy laws so they trust the government unlike US citizens who don't. As a result, I don't see this working in the US either – they are going to have to force mandatory tests for everyone to slow it down and right now that is not happening either. it is pretty much too late for containment in one country – in the USA. Top 10 in deaths per million and infected in the world.

  20. No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. NOOOOOOOOOOOOOO

Back to top button