Thousands of people have died worldwide due to Coronavirus, on the other hand millions of people are infected with it. Along with this, many countries have taken tough steps to stop this virus. There are many types of restrictions from school to closure. Apart from this, many countries have resorted to technology to fight this virus, which has given them considerable success. At the same time, today we will tell you about some countries, which have also prevented us from tracking this dangerous virus using devices and mobile apps. Hong Kong used wristbands Along with this, the government of Hong Kong has used a special technology wristbands to control the coronavirus, which is constantly connected with the smartphone app. At the same time, this app continuously tracks the location of people and gives their moment-to-moment information to the authorities. South Korea's special tool By the way, South Korea has used CCTV to track the coronavirus. But despite all this, the Korean government had launched a special tool on Thursday. The government keeps an eye on patients every moment through this tool. Singapore mobile app The government of Singapore launched a mobile app named TraceTogether to track patients of the corona virus. At the same time, this app works on the signal of Bluetooth. At the same time, this mobile app informs the officials that how many people have met Corona's patient during the day. China color code China has first used color coding technology to prevent corona virus. China has partnered with giant tech companies Alibaba and Tencent for this system. In addition, this system works as a smartphone app. In this, users are given QR codes of Green, Yellow and Red color according to their travel along with medical history. At the same time, these color codes decide whether the user should do a quarantine (stay at home) or be allowed to go to a public place. The Chinese government has made several checkpoints for this system, where people are checked. Here they are given a QR code according to their travel and medical history. If someone gets a green color code, he can use it to go to any public place. On the other hand, if someone finds a red colored code, he is asked to stay in the house. For your information, let us know that this system has been used in more than 200 Chinese cities. Also Read: Flipkart will deliver essential products during lockdown New feature of Instagram will make people aware of Corona Google launches Camera Go app for Android Go users You can work through these special apps during lockdo