Abstract Coronavirus disease 2019 (COVID‐19) reinfections could be a major aggravating
factor in this current pandemic, as this would further complicate potential vaccine …

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 …

BACKGROUND There is recently a concern regarding the reinfection and reactivation of
previously reCoVered coronavirus disease 2019 (CoVID-19) patients. AIM To summarize …

Background With the continuation of the COVID-19 pandemic, some COVID-19 patients
have become reinfected with the virus. Viral gene sequencing has found that some of these …

Objectives To estimate the burden and severity of suspected reinfection with severe acute
respiratory syndrome coronavirus 2 (SARS-CoV-2). Methods A retrospective cohort of …

The re-emergence of COVID-19 has sparked controversy around its zoonotic origin,
management strategies, risks posed by the virus, and the severity of reinfection. While it is …

The COVID-19 pandemic has infected millions of people worldwide and many countries
have been suffering from a large number of deaths. Acknowledging the ability of SARS-CoV …

Background Severe acute respiratory syndrome coronavirus 2 (SARS-cov-2), first described
in December 2019, has now infected more than 28 million cases with almost one million …

METHODS: This retrospective cohort study included five hospitals across Saudi Arabia. All
subjects who were presented or admitted with positive SARS-CoV-2 real-time polymerase …

To provide a comparative meta‐analysis and systematic review of the risk and clinical
outcomes of coronavirus 2019 (COVID‐19) infection between fully vaccinated and …