the government s announced there ll be a significant reduction in the availability of coronavirus vaccines from the end of this month, with the shortage expected to last through april. the nhs has written to local health organisations, urging them not to take any new appointments from the 29th of march. those who already have bookings are not expected to lose their slot. the bbc has been told that fewer batches of astrazeneca vaccines are available than expected. here is our political correspondent, laura kuenssberg. i have some fantastic news to be new today. we have now vaccinated over 25 million people stopping the vaccine is on the way. we are on track, so let s stick with that, follow the rules, and when you get the call, get the jab. the rules, and when you get the call, get the jab- call, get the “ab. perhaps the “ourne call, get the “ab. perhaps the journey is call, get the jab. perhaps the journey is less call, get the jab. perhaps the journey is less smoo