Nation Pfizer developing vaccine that targets omicron; Chicago set to resume in-person classes: COVID-19 updates January 11, 2022January 11, 2022Celina Tebor, USA TODAYComments Off on Pfizer developing vaccine that targets omicron; Chicago set to resume in-person classes: COVID-19 updates Pfizer's CEO Albert Bourla said developing a COVID vaccine specifically designed to target omicron is "the most likely scenario." Latest news.