Viral infections are a leading cause of myocarditis and pericarditis worldwide, conditions that
frequently coexist. Myocarditis and pericarditis were some of the early comorbidities …

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 …

Genomic surveillance has shaped our understanding of severe acute respiratory syndrome
coronavirus 2 (SARS-CoV-2) variants. We performed a global landscape analysis on SARS …

Objective To evaluate the impact of vaccine scale-up on population level covid-19 mortality
and incidence in the United States. Design Observational study. Setting US county level …

CDC's SARS-CoV-2 genomic surveillance has been expanded to incorporate sequence
data from public repositories and to produce weighted estimates of variant proportions at the …

Genomic Surveillance for SARS-CoV-2 Variants: Circulation of Omicron Lineages — United
States, January 2022–May 2023 | MMWR Skip directly to site content Skip directly to search …

The waves of COVID-19 infections driven by its variants continue to nullify the success we
achieved through efficacious vaccines, social restrictions, testing and quarantine policies …

Background COVID-19 in pregnant people increases the risk for poor maternal–fetal
outcomes. However, COVID-19 vaccination hesitancy remains due to concerns over the …

Background Immunocompromised patients are at high risk of severe coronavirus disease
2019 (COVID-19) and death, yet treatment strategies for immunocompromised patients …

To detect new and changing SARS-CoV-2 variants, we investigated candidate Delta–
Omicron recombinant genomes from Centers for Disease Control and Prevention national …