Are you asking how many have been done at this point in time?
On May 25th, 2020. See this statement in context.
On May 25th, 2020. See this statement in context.
Full Professor, Department of Microbiology, Infectious Diseases and Immunology, Faculty of Medicine, Université de Montréal, Medical Microbiologist and Epidemiologist, CHU Sainte-Justine, As an Individual
Are you asking how many have been done at this point in time?
See context to find out what was said next.