Pfizer Inc says coronavirus pandemic could extend to 2024

Vaccine data for younger children delayed, says Pfizer

Pfizer Inc on Friday forecast that the COVID-19 pandemic would not be behind us until 2024 and said a lower-dose version of its vaccine for 2- to 4-year-olds generated a weaker immune response than expected, potentially delaying authorization.

Pfizer Chief Scientific Officer Mikael Dolsten said in a presentation to investors that the company expects some regions to continue to see pandemic levels of COVID-19 cases over the next year or two. Other countries will transition to "endemic" with low, manageable caseloads during that same time period.

By 2024, the disease should be endemic around the globe, the company projected.

"When and how exactly