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 …

This paper assesses the age specificity of the infection fatality rate (IFR) for COVID-19. Our
benchmark meta-regression synthesizes the age-specific IFRs from four recent large-scale …

Background Sero-surveillance of severe acute respiratory syndrome coronavirus 2 (SARS-
CoV-2) can reveal trends and differences in subgroups and capture undetected or …

Background The infection fatality ratio (IFR) is a key statistic for estimating the burden of
coronavirus disease 2019 (COVID-19) and has been continuously debated throughout the …

Seroprevalence surveys provide estimates of the extent of SARS-CoV-2 infections in the
population, regardless of disease severity and test availability. In Mexico in 2020, COVID-19 …

Background Serosurveys help to ascertain burden of infection. Prior severe acute respiratory
syndrome coronavirus 2 (SARS-CoV-2) serosurveys in New York City (NYC) used …

The COVID-19 pandemic led to development of numerous serologic tests. To obviate the
need for phlebotomy services, we validated dried blood spots (DBS) for anti-SARS-CoV-2 …

SUMMARY Background In Yemen, initial surveillance of coronavirus disease 2019 (COVID-
19) focused primarily on patients with symptoms or severe disease. The full spectrum of the …

Background Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2)
seroprevalence studies largely focus on adults, but little is known about spread in children …

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused millions of
deaths around the world within the past 2 years. Transmission within the United States has …