Tag: covid19
One hundred years ago a young Russian scientist, Dimitri Ivanovsky (1864 to 1920), presented a paper before the Academy of Sciences of St. Petersburg in which he stated that "the sap of leaves infected with tobacco mosaic disease retains its infectious properties even after filtration through Chamberland filter candles"
2 days ago
 
Transplantation of ACE2- Mesenchymal Stem Cells Improves the Outcome of Patients with COVID-19 Pneumonia
14 days ago