The RSPCA says it is still receiving a 'steady trickle' of seal pups in need of urgent care, following last month's tidal surge in Norfolk.
Its East Winch Wildlife Centre near Kings Lynn at one time had 108 seal pups in its care - the most it has ever had to look after in its 25-year history.
The pups needed round-the-clock supervision and hand feeding to survive.
Nearly two months after the surge, 93 pups remain at the centre - more than 40 of those are intensive care - and more poorly youngsters continue to be brought in.
Alison Charles, centre manager, said: "We are in for the long haul with this one - it is going to take some months to get these pups fighting fit and ready to be released back to the wild.
"Many of the pups are doing really well and are now feeding for themselves and swimming in the outside pools, but there are still over 40 in our intensive care.
"I am so proud of my poor staff, who have been working until after midnight every night and for so many weeks - it feels relentless at times.
"But it is all worth it when you see how well some of the pups are coming along. We just need to keep on going until they are all out of intensive care and making a good recovery."
She said it could take another three months until these seals are ready to be released back to the wild again.
A crisis appeal launched to help the seals in December received a fantastic response. Many of the practical donations have been sent in - from liquidisers to dog bowls to measuring jugs.
However the RSPCA is appealing for help towards the ongoing costs of feeding the seals - estimated to cost 22 a week per seal. To help visit
the RSPCA's seal appeal page.
The centre is also appealing for a number of practical items used by centre staff to rehabilitate the seal pups.
These can be taken directly to RSPCA East Winch Wildlife Centre at Station Road, East Winch, King's Lynn, Norfolk, PE32 1NR.
These include:
▪ Sachets of lectade (large animal)
▪ Pestle and mortar
▪ Deck scrub brushes (Salmon make)
▪ An industrial dishwasher
▪ Squeegies
▪ Vileda sponge mops X2
▪ Large vari kennels
▪ Milk, tea, coffee and sugar to keep the staff and volunteers going
The centre does not need any more towels following a successful recent appeal.