The video discusses the concept of contact tracing, a technology used to track virus spread. It compares traditional methods with digital contact tracing, which uses Bluetooth apps to alert users of potential exposure. The video highlights the global use of this technology, particularly in South Korea and Singapore, and addresses privacy concerns. Experts suggest that digital contact tracing could be effective if implemented with proper safeguards and as an opt-in measure, balancing public health benefits with privacy rights.

What is the primary technology used in modern contact tracing apps?

• NFC

• Wi-Fi

• Bluetooth

• GPS

In the example given, how does the app notify someone of potential exposure to COVID-19?

• By emailing the person

• By sending an alert through the app

• By calling the person directly

• By sending a text message

Which countries successfully used digital contact tracing to slow the spread of COVID-19?

• United States and Canada

• South Korea and Singapore

• Italy and Spain

• Brazil and Argentina

What is a major concern associated with digital contact tracing?

• The cost of the app

• The battery life of phones

• Privacy and surveillance

• The speed of internet connection

What is suggested as a more acceptable approach to digital contact tracing?

• Publicly accessible data

• Government-controlled data

• Opt-in participation

• Mandatory installation on all phones