Pfizer and BioNTech released more human data Friday indicating the omicron BA.5 boosters perform better than the old Covid shots. Stream NBC 5 for free, 24/7, wherever you are. People older than 55 ...

Stream Connecticut News for free, 24/7, wherever you are. South African scientists say the Covid omicron variant significantly reduces antibody protection generated by Pfizer and BioNTech's vaccine, ...

Pfizer and BioNTech said Wednesday that initial lab tests show that the omicron variant partly escapes protection offered by the companies' two-dose regimen of their COVID-19 vaccine. However, those ...

Americans have two options for a new omicron-specific Covid booster shot: Pfizer or Moderna. Which one should you get? The short answer: It mostly depends on what you're eligible for. Stream Los ...

Pfizer has released date showing its booster dose of Covid-19 vaccine appears to protect against the omicron variant. NBC's Sam Brock has details.

Pfizer asked U.S. regulators Monday to expand use of its updated COVID-19 booster shot to children ages 5 to 11. Elementary school-aged children already received kid-sized doses of Pfizer’s original ...

Pfizer and BioNTech said Tuesday they've begun clinical trials for an omicron-based COVID-19 vaccine. According to a press release, the vaccine will be tested initially in adults aged 18 to 55. "While ...

Pfizer will begin human trials of an omicron-specific COVID-19 vaccine beginning in late January, a company spokesperson confirmed Monday to FOX TV Stations. "We already have begun work on a DNA ...

Pfizer announced Thursday that a third shot of its COVID-19 vaccine raised omicron-fighting antibody by 36 times in children ages 5 to 11. Pfizer/BioNTech plans to request emergency use authorization ...

The effectiveness of the Pfizer/BioNTech Covid-19 vaccines for children waned quickly during the Omicron surge, especially among children ages 5 to 11, but was still protective against severe disease, ...