Porous cotton substrates are better in destabilizing the SARS-CoV-2 virus. With global COVID-19 cases over 37 million and deaths crossing one million, medical and on medical countermeasures such as masks are critically needed. Professor at Texas Tech University, USA stated that recent study by Australian scientists show that material characteristics and temperature play important roles in the survival of the coronavirus. The work focused on the survival rate of SARS-CoV-2 virus on surfaces like paper notes, stainless steel, glass, vinyl material and cotton cloth. The viral studies were performed in high containment (Biosafety Level 4) at the Australian Center for Disease Preparedness. At 20 C, for nonporous materials like stainless steel, glass, the virus persisted beyond 28 days post infection. In the case of cotton, virus was not recovered past 14 days after inoculation. As the temperature was raised, recovery of the virus was reduced. At 40 C, SARS-CoV-2 was not recoverable after 24 hours for cotton, while virus was not recovered beyond 48 hours for nonporous surfaces studied. In addition, humidity also influences the survival rate of the virus.
展开▼
