Background A rapidly increasing number of serological surveys for antibodies to SARS-CoV-
2 have been reported worldwide. We aimed to synthesise, combine, and assess this large …

Objectives COVID-19 has been arguably the most important public health concern
worldwide in 2020, and efforts are now escalating to suppress or eliminate its spread. In this …

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

Background Accurate seroprevalence estimates of SARS-CoV-2 in different populations
could clarify the extent to which current testing strategies are identifying all active infection …

Background Our understanding of the global scale of Severe Acute Respiratory Syndrome
Coronavirus 2 (SARS-CoV-2) infection remains incomplete: Routine surveillance data …

Background Progress in characterising the humoral immune response to Severe Acute
Respiratory Syndrome 2 (SARS-CoV-2) has been rapid but areas of uncertainty persist …

Background COVID-19 case data underestimates infection and immunity, especially in low-
and middle-income countries (LMICs). We meta-analyzed standardized SARS-CoV-2 …

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), causing the coronavirus
disease 2019 (COVID-19), has led to a global pandemic. However, the majority of currently …

Background With limited vaccine supplies, an informed position on the status of SARS-CoV-
2 infection in people can assist the prioritization of vaccine deployment. Objectives We …

The first local spread of COVID-19 in Israel was detected in March 2020. Due to the diversity
in clinical presentations of COVID-19, diagnosis by RT-PCR alone might miss patients with …