Effectiveness of Surgical and Cotton Masks in Blocking SARS-CoV-2: A Controlled Comparison in 4 Patients

Ann Intern Med. 2020 Apr 6;M20-1342. doi: 10.7326/M20-1342. Online ahead of print.

Abstract

No abstract available

Keywords: COVID-19; Coughing; Oral health; Penicillin; Phosphates; Serum albumin; Streptomycin; Upper respiratory tract infections; Viral load; Viral transmission and infection.

Publication types

  • Letter
  • Retracted Publication