Top US health officials have called on the White House to pump the brakes on plans to administer Covid vaccine booster shots to millions of Americans later this month, pointing to insufficient data, according to multiple reports.
As COVID — especially the Delta variant — surges among the fully vaccinated, Brian Hooker, Ph.D., said the more the variant deviates from the original sequence used for the vaccine, the less effective the vaccine will be on that variant.
Pfizer hiked its projections for COVID vaccine revenues, telling investors this week it expects booster shots, a vaccine targeting the Delta variant and anticipated authorization of its vaccines for children as young as 6 months will drive revenues higher.
