1. Coronavirus Update (Live) Cases and Deaths from Covid-19 Virus Pandemic;Worldometers,2021
2. Covid-19 Map,2021
3. Rolling Updates on Coronavirus Disease (Covid-19);World Health Organization,2021
4. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and coronavirus disease-2019 (Covid-19): the epidemic and the challenges;Lai;Int. J. Antimicrob. Agents,2020
5. A nanomechanical study on deciphering the stickiness of SARS-CoV-2 on inanimate surfaces;Xie;ACS Appl. Mater. Interfaces,2020