Annals of internal medicine
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In March 2021, several European countries suspended the use of the AZD1222 (Oxford-AstraZeneca) COVID-19 vaccine because of thromboembolic safety concerns. Reports from Norway and Germany subsequently described patients with venous thrombosis and thrombocytopenia within 5 to 16 days of vaccination. ⋯ Lundbeck Foundation.
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Observational Study
Effectiveness of Inactivated COVID-19 Vaccines Against Illness Caused by the B.1.617.2 (Delta) Variant During an Outbreak in Guangdong, China : A Cohort Study.
Real-world evidence on inactivated COVID-19 vaccines against the highly transmissible B.1.617.2 (Delta) variant of SARS-CoV-2 is limited, leaving an important gap in the evidence base about inactivated COVID-19 vaccines for use by immunization programs. ⋯ National Natural Science Foundation of China and Key-Area Research and Development Program of Guangdong Province.