WHO has published guidance on adjusting public health and social measures for the next
phase of the COVID-19 response. 1 Some governments have suggested that the detection …

Restrictive measures imposed because of the coronavirus disease 2019 (COVID-19)
pandemic have resulted in severe social, economic and health effects. Some countries have …

Early in the COVID-19 pandemic, de-velopers designed SARS-CoV-2 antibody tests to
detect whether people had been infected. Some experts thought the blood tests eventually …

Abstract Faced with COVID-19 (Coronavirus), countries are taking drastic action based on
little information. Two tests can help governments shorten and soften economically costly …

Waiting for Certainty on Covid-19 Antibody Tests Despite our inability to guarantee the
accuracy of an immunity-certification process, failing to take action to identify people who …

There is much debate about the use of immunity passports in the response to the COVID-19
pandemic. Some have argued that immunity passports are unethical and impractical …

A number of countries are planning the use of “immunity passports” as a way to ease
restrictive measures and allow infected and recovered people to return to work during the …

In this study, we investigate the seroprevalence of SARS-CoV-2 antibodies among blood
donors in the cities of Wuhan, Shenzhen, and Shijiazhuang in China. From January to April …

Background It is to be determined whether people infected with SARS-CoV-2 will develop
long-term immunity against SARS-CoV-2 and retain long-lasting protective antibodies after …

The 2019 novel coronavirus (2019-nCoV, now designated as severe acute respiratory
syndrome coronavirus 2, SARS-CoV-2) outbreak has posed a severe threat to public health …