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Dear readers,
This week, NEJM Journal Watch covered COVID-19–related topics including real-world performance of the Pfizer mRNA vaccine, household air contamination with SARS-CoV-2, enduring protective immunity after COVID-19, secondary infections in patients with severe disease, SARS-CoV-2 reinfection, and protection in utero against neonatal COVID-19.
This information appears on the NEJM Journal Watch COVID-19 page (https://www.jwatch.org/covid-19) and on the New England Journal of Medicine coronavirus site (https://www.nejm.org/coronavirus).
As always, we continue to provide our regular coverage of other important infectious diseases research.