The businesses mentioned a 3rd dose seems to supply the same variety of antibodies as a two-dose collection in opposition to the unique virus and different variants. Individuals who have two pictures of the vaccine should be protected in opposition to extreme circumstances, they added.
The businesses on Nov. 25 started growing an Omicron-specific vaccine and mentioned Wednesday that the work will proceed in case the shot is required to extend the extent and length of safety in opposition to Omicron. First batches of the Omicron-based vaccine could be produced and are deliberate to be prepared for deliveries inside 100 days, pending regulatory approval, Pfizer and BioNTech mentioned.
The businesses mentioned they “have excessive confidence” they will ship an Omicron-based vaccine in March 2022, if wanted, and that it will not have an effect on plans to provide 4 billion doses of vaccines subsequent yr.
South African researchers this week reported that research recommend the Omicron variant can partiallly evade safety from two Pfizer-BioNTech pictures — however that individuals who have been beforehand contaminated and had acquired two doses have been capable of largely neutralize the variant.
David Lim contributed to this report.