Notes from the Field: Readiness for Use of Type 2 Novel Oral Poliovirus Vaccine in Response to a Type 2 Circulating Vaccine-Derived Poliovirus Outbreak - Tajikistan, 2020-2021

Published on March 3, 2022

This report describes use of type 2 oral poliovirus vaccine to treat a poliovirus outbreak in Tajikistan.

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EARLY RELEASE: Effectiveness of COVID-19 Pfizer-BioNTech BNT162b2 mRNA Vaccination in Preventing COVID-19-Associated Emergency Department and Urgent Care Encounters and Hospitalizations Among Nonimmunocompromised Children and Adolescents Aged 5-17 Year...

March 1, 2022
This report describes mRNA COVID-19 vaccine effectiveness in preventing emergency department and urgent care encounters as well as hospitalizations among children and adolescents.

EARLY RELEASE: SARS-CoV-2 Incidence in K-12 School Districts with Mask-Required Versus Mask-Optional Policies - Arkansas, August-October 2021

March 8, 2022
This report compares COVID-19 incidence in Arkansas K-12 school districts between those with mask requirements versus those without mask requirements.