The data collected seven days after administering a 30-ug COVID booster dose showed a “substantial increase” in neutralizing antibodies, Pfizer and German partner BioNTech said.
A flurry of announcements Thursday on COVID vaccines and boosters offered further evidence and support for the new bivalent boosters that target the most dominant virus strains and experts are hoping they will persuade more Americans to get the updated shot.
“While we expect more mature immune response data from the clinical trial of our Omicron BA.4/BA.5-adapted bivalent vaccine in the coming weeks, we are pleased to see encouraging responses just one week after vaccination in younger and older adults,” Pfizer CEO Albert Bourla said in a statement. The global tally of COVID cases fell 10% in the week through Oct. 9 from the previous week, the World Health Organization said in its weekly update on the pandemic.Omicron remained the dominant variant, accounting for 99.9% of cases sequenced in the last 30 days and forwarded to a central database. The BA.5 descendent lineage remains the dominant subvariant, accounting for 76.2% of cases.
The daily average for hospitalizations was down 7% at 26,690, while the daily average for deaths is down 2% to 377.
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