Interim Estimates of Vaccine Effectiveness of BNT162b2 and mRNA-1273 COVID-19 Vaccines in Preventing SARS-CoV-2 Infection Among Health Care Personnel, First Responders, and Other Essential and Frontline Workers — Eight U.S. Locations, December
Can you mix different COVID-19 vaccines? New research | World Economic Forum
First dose of Pfizer-BioNTech or Oxford-AstraZeneca vaccines has strong protective effect against COVID-19 in older adults
How the Pfizer-BioNTech Covid-19 Vaccine Works - The New York Times
Cancer Patients Respond Poorly to First COVID mRNA Vax Dose | MedPage Today
California Throws Open COVID Vaccines To Anyone 65 And Older - capradio.org
Interim findings from first-dose mass COVID-19 vaccination roll-out and COVID-19 hospital admissions in Scotland: a national prospective cohort study - The Lancet
Effectiveness of Pfizer-BioNTech and Moderna Vaccines Against COVID-19 Among Hospitalized Adults Aged ≥65 Years — United States, January–March 2021 | MMWR
How Effective Is the First Shot of the Pfizer or Moderna Vaccine? | UVA Today
Covid-19 vaccine mixing: the good, the bad and the uncertain
Spain approves Pfizer shots for under-60s who got AstraZeneca first dose -El Pais | Reuters
S.Korea says AstraZeneca, Pfizer COVID-19 vaccines 87% effective after first shot | Reuters
Preprint Data: Pfizer Vaccine Shows Reduced COVID-19 Risk After 2 Weeks Administration
First Dose of Pfizer-BioNTech COVID-19 Vaccine Reduces Symptomatic Disease Significantly
Beyond the First Dose — Covid-19 Vaccine Follow-through and Continued Protective Measures | NEJM
Shot of a Lifetime: How Pfizer and BioNTech Developed and Manufactured a COVID-19 Vaccine in Record Time | Pfizer
Pfizer asks FDA to authorize third Covid vaccine shot for children 5 to 11 years old
Evaluation of COVID-19 vaccination strategies with a delayed second dose | medRxiv
Care needed' after getting Covid vaccine - BBC News
Labeling confusion led to wasted doses of Pfizer Covid-19 vaccine - STAT
Chart: 28 Days Later: The Pfizer/BioNTech Vaccination Process | Statista
Pfizer's Vaccine Offers Strong Protection After First Dose - The New York Times
University of Pennsylvania mRNA Biology Pioneers Receive COVID-19 Vaccine Enabled by their Foundational Research - Penn Medicine
U.S. Government Fulfills Its Promise To Deliver 9.8 Million Pfizer-BioNTech COVID-19 Vaccines For Mozambican Youth - U.S. Embassy in Mozambique
Interim Estimates of Vaccine Effectiveness of Pfizer-BioNTech and Moderna COVID-19 Vaccines Among Health Care Personnel — 33 U.S. Sites, January–March 2021 | MMWR
