Table 3.

The summary of various research contributions made in IoT to handle the COVID-19 pandemic.

S. No	Refs. No.	Domain	Contribution
1	[19]	Use of UAVs and Drones for fighting against the pandemic	Application of LoRaWAN technology is used for monitoring COVID-19 patients remotely.
2	[20]	IoT for the diagnosis of COVID-19 patients	WeChat application is used for improving the coordination between diagnosis and treatment of COVID-19 patients.
3	[21]	IoT for the services of telemedicine in COVID-19, wearable technologies for the prediction of COVID-19 enabled by IoT	Demonstration of monitoring wearable devices remotely in COVID-19.
4	[22]	Efficient and Secure Contact Tracing	Discussion based on the solution of privacy-preserving contact tracing and challenges faced by it.
5	[23]	Use of UAVs and Drone for the protection in this pandemic	Potential technologies like AI, ML, and IoT in the field of health care are reviewed for the prediction of the pandemic, disease analysis, delivery of medicine, etc.
6	[24]	Contact tracing via TraceTogether App	Demonstration of a mobile application enabled by IoT for contact tracing of a coronavirus disease.
7	[25]	Current contact tracing techniques	IoT technology is implemented for improving the contact tracing efficiency
8	[26]	Classification of contact for the sake of contact tracing	Demonstration of classification of contact based upon Bluetooth messages
9	[27]	Contact tracing with the help of DP3T (Decentralized Privacy-Preserving Proximity Tracing)	Demonstration of contact tracing solution safely and securely in a decentralized way.
10	[28]	Efficient and Secure Contact Tracing	By using Bluetooth technology, privacy preserved contact tracing solutions are demonstrated.