Percentage of asymptomatic infections among SARS-CoV-2 omicron variant-positive individuals: a systematic review and meta-analysis
Background: Asymptomatic infections are potential sources of transmission for coronavirus
disease 2019, especially during the epidemic of the SARS-CoV-2 Omicron variant. We …
disease 2019, especially during the epidemic of the SARS-CoV-2 Omicron variant. We …
The methodologies to assess the effectiveness of non-pharmaceutical interventions during COVID-19: a systematic review
Non-pharmaceutical interventions, such as school closures and stay-at-home orders, have
been implemented around the world to control the spread of SARS-CoV-2. Their …
been implemented around the world to control the spread of SARS-CoV-2. Their …
[HTML][HTML] Persistent COVID-19 symptoms in a community study of 606,434 people in England
Long COVID remains a broadly defined syndrome, with estimates of prevalence and
duration varying widely. We use data from rounds 3–5 of the REACT-2 study (n= 508,707; …
duration varying widely. We use data from rounds 3–5 of the REACT-2 study (n= 508,707; …
Understanding the effectiveness of government interventions against the resurgence of COVID-19 in Europe
European governments use non-pharmaceutical interventions (NPIs) to control resurging
waves of COVID-19. However, they only have outdated estimates for how effective individual …
waves of COVID-19. However, they only have outdated estimates for how effective individual …
Rapid increase in Omicron infections in England during December 2021: REACT-1 study
The unprecedented rise in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
infections during December 2021 was concurrent with rapid spread of the Omicron variant in …
infections during December 2021 was concurrent with rapid spread of the Omicron variant in …
Twin peaks: the Omicron SARS-CoV-2 BA. 1 and BA. 2 epidemics in England
Rapid transmission of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
Omicron variant has led to record-breaking incidence rates around the world. The Real-time …
Omicron variant has led to record-breaking incidence rates around the world. The Real-time …
Exponential growth, high prevalence of SARS-CoV-2, and vaccine effectiveness associated with the Delta variant
BACKGROUND The prevalence of severe acute respiratory syndrome coronavirus 2 (SARS-
CoV-2) infection continues to drive rates of illness and hospitalizations despite high levels of …
CoV-2) infection continues to drive rates of illness and hospitalizations despite high levels of …
Persistent symptoms following SARS-CoV-2 infection in a random community sample of 508,707 people
Background Long COVID, describing the long-term sequelae after SARS-CoV-2 infection,
remains a poorly defined syndrome. There is uncertainty about its predisposing factors and …
remains a poorly defined syndrome. There is uncertainty about its predisposing factors and …
Predictive symptoms for COVID-19 in the community: REACT-1 study of over 1 million people
Background Rapid detection, isolation, and contact tracing of community COVID-19 cases
are essential measures to limit the community spread of severe acute respiratory syndrome …
are essential measures to limit the community spread of severe acute respiratory syndrome …
Ct threshold values, a proxy for viral load in community SARS-CoV-2 cases, demonstrate wide variation across populations and over time
Background: Information on SARS-CoV-2 in representative community surveillance is
limited, particularly cycle threshold (Ct) values (a proxy for viral load). Methods: We included …
limited, particularly cycle threshold (Ct) values (a proxy for viral load). Methods: We included …