According to this article red squirrels are dying due to bacteria which is linked to people feeding them. The problem is caused by human bacteria being passed on from people who leave food out for the squirrels. The bacteria is found naturally in humans but has been found in lesions on 11 dead squirrels in the Isle of Wight and Jersey in 2007 and 2008. The Wildlife Veterinary Investigation Centre in Cornwall has advised people to wear gloves or wash their hands when putting out food for squirrels.
