The science around the use of masks by the public to impede COVID-19 transmission is
advancing rapidly. In this narrative review, we develop an analytical framework to examine …

Objectives To summarise the evidence on the detection pattern and viral load of SARS-CoV-
2 over the course of an infection (including any asymptomatic or pre-symptomatic phase) …

Importance Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the etiology of
coronavirus disease 2019 (COVID-19), is readily transmitted person to person. Optimal …

Although airborne transmission of severe acute respiratory syndrome coronavirus 2 (SARS-
CoV-2) has been recognized, the condition of ventilation for its occurrence is still being …

The guidance in this document is based on the above strategic priorities, and is intended for
clinicians involved in the care of patients with suspected or confirmed COVID-19. It is not …

Summary SARS-CoV-2-specific memory T cells will likely prove critical for long-term immune
protection against COVID-19. Here, we systematically mapped the functional and …

This document is an update to the scientific brief published on 29 March 2020 entitled
“Modes of transmission of virus causing COVID-19: implications for infection prevention and …

Introduction The COVID-19 pandemic has created a public health crisis, infected millions of
people, and caused a significant number of deaths. SARS-CoV-2 transmits from person to …

The increasing prevalence of infectious diseases in recent decades has posed a serious
threat to public health. Routes of transmission differ, but the respiratory droplet or airborne …

As of April 2, 2020, the coronavirus disease 2019 (COVID-19) pandemic has resulted in>
890,000 cases and> 45,000 deaths worldwide, including 239,279 cases and 5,443 deaths …