Seroprevalence surveys suggest that more than a third and possibly more than half of the
global population has been infected with SARS-CoV-2 by early 2022. As large numbers of …

Analysing wastewater can be used to track infectious disease agents that are shed via stool
and urine. Sewage surveillance of SARS-CoV-2 has been suggested as a tool to determine …

Global case and death incidences continued to decrease with over 3 million new weekly
cases and over 73 000 new deaths, a 15% and an 8% decrease respectively, compared to …

Background The infection-fatality ratio (IFR) is a metric that quantifies the likelihood of an
individual dying once infected with a pathogen. Understanding the determinants of IFR …

Background Timely, accurate, and comprehensive estimates of SARS-CoV-2 daily infection
rates, cumulative infections, the proportion of the population that has been infected at least …

In December 2019, the novel betacoronavirus Severe Acute Respiratory Disease
Coronavirus 2 (SARS-CoV-2) was first detected in Wuhan, China. SARS-CoV-2 has since …

The largest burden of COVID-19 is carried by the elderly, and persons living in nursing
homes are particularly vulnerable. However, 94% of the global population is younger than …

Background Many studies report the seroprevalence of severe acute respiratory syndrome
coronavirus 2 (SARS-CoV-2) antibodies. We aimed to synthesize seroprevalence data to …

Determine age-specific infection fatality rates for COVID-19 to inform public health policies
and communications that help protect vulnerable age groups. Studies of COVID-19 …

Introduction Estimating COVID-19 cumulative incidence in Africa remains problematic due to
challenges in contact tracing, routine surveillance systems and laboratory testing capacities …