Även USA berörs av förseningar av vaccinleveranser

The army general in charge of distributing Covid vaccines in the US has admitted he failed over the initial number of doses promised to states.

Gen Gustave Perna, the head of Operation Warp Speed, said he took "personal responsibility for the miscommunication" to state governors.

More than a dozen states have expressed alarm at a cut in the expected number.

The Pfizer-BioNTech doses are being rolled out following approval - and a Moderna vaccine is now also approved.

Man motionerar inte för att bli yngre utan för att bli äldre.

The army general apologises to states who will get fewer Pfizer doses than they were expecting.