Few studies examine how severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) tests assist or hinder efforts to prevent illness, hospitalisations, or people dying. Due to weak evidence, we’re ...

COVID 19 is caused by a new coronavirus , SARS-CoV-2, which is highly infectious and can cause a wide spectrum of symptoms and affect multiple human systems. What we have learned from other viral ...

Antibody tests are important tools to assess the efficacy of vaccine candidates and to derive suitable vaccination modalities. High specificity and sensitivity are of great importance for the quality ...

Objective This study examined the patterns and persistence of SARS-CoV-2 seropositivity among college students from March to November 2020. Using data from a sample of students at Indiana University, ...

The question of the origin of SARS-CoV-2 continues to occupy scientists, the media, and the public intensely even 5 years after the onset of the COVID-19 pandemic. Where the virus came from, when and ...

A higher proportion of adolescents who tested positive for COVID-19 reported ongoing symptoms compared with those who tested negative or never tested.

Two of the closest known relatives to SARS-CoV-2 -- a pair of bat coronaviruses discovered by researchers in Laos -- may transmit poorly in people despite being genetically similar to the ...