Laboratory biosafety measures of SARS-CoV-2 at containment level 2 with particular reference to its more infective variants

The novel betacoronavirus (Severe Acute Respiratory Syndrome Coronavirus 2, SARS-CoV-2) is a pathogen that causes deadly respiratory disease named coronavirus disease 2019 (COVID-19). The incidence of this disease has increased in the last few months affecting 257,832,881 people in 221 countries and 51,68,069 deaths worldwide according to Worldometer at 04:03 GMT on November 22, 2021. Thus, the emergence of this disease creates a challenge for health care providers in handling this pathogen and reducing its risk of transmission. In developing countries, this virus is treated in biosafety level 2 laboratories, where a high concentration of pathogen can easily affect the laboratory staff and cause the spread of this disease. Based on the epidemiology and characteristics of the SARS-CoV-2 virus already discussed in recent studies, we will provide biosafety guidelines and suggestions for safe handling and transportation of the SARS-CoV-2 virus in dealing with the current pandemic situation with a focus on increased infectivity of emerging new variants.