On This Day

US authorizes its third COVID-19 vaccine from Johnson & Johnson, a one-shot vaccine

The Pfizer–BioNTech COVID-19 vaccine, sold under the brand name Comirnaty, is an mRNA-based COVID-19 vaccine developed by the German biotechnology company BioNTech.

The Pfizer–BioNTech COVID-19 vaccine, sold under the brand name Comirnaty, is an mRNA-based COVID-19 vaccine developed by the German biotechnology company BioNTech. For its development, BioNTech collaborated with the American company Pfizer to carry out clinical trials, logistics, and manufacturing. It is authorized for use in humans to provide protection against COVID-19, caused by infection with the SARS-CoV-2 virus. The vaccine is given by intramuscular injection. It is composed of nucleoside-modified mRNA (modRNA) that encodes a mutated form of the full-length spike protein of SARS-CoV-2, which is encapsulated in lipid nanoparticles.

Historical Significance

The Pfizer–BioNTech COVID-19 vaccine, sold under the brand name Comirnaty, is an mRNA-based COVID-19 vaccine developed by the German biotechnology company BioNTech.

Events Before

  1. Pro-Iranian protesters end siege of US Embassy in Baghdad, Iraq

    Pro-Iranian protesters end siege of US Embassy in Baghdad, Iraq

  2. Scotland's Peter Wright beats Dutch defending champion Michael Van Gerwen 7-3 with a 102.79 average, 34 x 140s, 11 maxim

    Scotland's Peter Wright beats Dutch defending champion Michael Van Gerwen 7-3 with a 102.79 average, 34 x 140s, 11 maximums, and 53% on doubles to seal his first PDC World Darts Championship in London

  3. Australian actor Liam Hemsworth and American singer Miley Cyrus divorce after 1 year of marriage

    Miley Ray Cyrus ( MY-lee SY-rəs, born Destiny Hope Cyrus; November 23, 1992) is an American singer, songwriter, and actress.

  4. China locks down the city of Wuhan and its 9 million people in a belated but ultimately successful effort to control the

    China locks down the city of Wuhan and its 9 million people in a belated but ultimately successful effort to control the city's COVID-19 outbreak

  5. American actress and TV host Niecy Nash (50) divorces American electrical engineer Jay Tucker after over 8 years of marr

    American actress and TV host Niecy Nash (50) divorces American electrical engineer Jay Tucker after over 8 years of marriage

Events After

  1. Chicago Bulls forward DeMar DeRozan becomes the first player in NBA history to hit buzzer-beaters on consecutive days; h

    Chicago Bulls forward DeMar DeRozan becomes the first player in NBA history to hit buzzer-beaters on consecutive days; he hits 3-pointers to beat the Washington Wizards 120-119 and the previous night the Indiana Pacers 108-106

  2. Actors Lisa Bonet and Jason Momoa divorce after four years of marriage

    Actors Lisa Bonet and Jason Momoa divorce after four years of marriage

  3. Russia launches a full-scale pre-dawn and unprovoked invasion of Ukraine by land, air, and sea, with bombings in several

    Russia launches a full-scale pre-dawn and unprovoked invasion of Ukraine by land, air, and sea, with bombings in several cities. Moments later, Vladimir Putin announces the start of a three-day “special military operation” in Ukraine to "demilitarize" the country. [1]

  4. In a major victory for Ukraine, Russia announces it is withdrawing its badly mauled forces from around Ukraine's capital

    In a major victory for Ukraine, Russia announces it is withdrawing its badly mauled forces from around Ukraine's capital, Kyiv

  5. "Top Gun Maverick" the sequel starring Tom Cruise, Miles Teller and Jennifer Connelly is released 36 years after the ori

    "Top Gun Maverick" the sequel starring Tom Cruise, Miles Teller and Jennifer Connelly is released 36 years after the original film

More from the 2020s

Frequently Asked Questions

What happened on February 27, 2021?
The Pfizer–BioNTech COVID-19 vaccine, sold under the brand name Comirnaty, is an mRNA-based COVID-19 vaccine developed by the German biotechnology company BioNTech. For its development, BioNTech collaborated with the American company Pfizer to carry out clinical trials, logistics, and manufacturing. It is authorized for use in humans to provide protection against COVID-19, caused by infection with the SARS-CoV-2 virus.
Why is US authorizes its third COVID-19 vaccine from Johnson & Johnson, a one-shot v... significant?
The Pfizer–BioNTech COVID-19 vaccine, sold under the brand name Comirnaty, is an mRNA-based COVID-19 vaccine developed by the German biotechnology company BioNTech.

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