The outbreak of the novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
in December 2019 in Wuhan challenges pediatric oncologists in an unexpected way. We …

Background As the COVID-19 pandemic rages on, reports on disparities in vaccine roll out
alongside COVID-19 reinfection have been emerging. We conducted a systematic review to …

Introduction Interest revolving around coronavirus disease 2019 (COVID‐19) reinfection is
escalating rapidly. By definition, reinfection denotes severe acute respiratory syndrome …

Reinfection with SARS-CoV-2 is not frequent yet the incidence rate of it is increasing
globally owing to the slow emergence of drift variants that pose a perpetual threat to …

Estimates of the burden of severe acute respiratory syndrome coronavirus 2 reinfections are
limited by the scarcity of population-level studies incorporating genomic support. We …

Objective To inform quarantine and contact-tracing policies concerning re-positive cases—
cases testing positive among those recovered. Materials and methods We systematically …

Abstract A 77-year-old man (case R) with previous diagnosis of a mild COVID-19 episode
was hospitalized 35 days later. On day 23 postadmission, he developed a second COVID …

The novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a highly
infectious RNA coronavirus responsible for the pandemic of the coronavirus disease 2019 …

Coronavirus disease-2019 (COVID-19) is caused by severe acute respiratory syndrome
corona virus-2 (SARS-CoV-2) and has been declared as a pandemic due to rapid global …

Background As the COVID-19 pandemic rages on, reports on disparities in vaccine roll out
alongside reinfection and reactivation from previously recovered cases have been …