Kate Garraway has paid tribute to all the nurses who took care of her husband Derek Draper amid his coronavirus battle.Reflecting on the "many, very dark hours," the Good Morning Britain host shared a picture from her interview on Heart FM to mark International Nurses Day on Wednesday."In my book #thepowerofhope I talk about how much their spirit and skill gave me hope in many very dark hours and I know they do the same every day for millions of others.