Mine has recently been off sick for:
Impetigo (contagious, she can't go to school but felt fine in herself).
Vomit caused by a migraine (school request she stayed home for 48hrs but 24hrs later she was totally fine!)
2 week recovery after a tonsilectomy. She was really ill for 7 - 10 days but was recommended to stay off school for 2 weeks so the second week we went away on holiday.
All meant no school but a child well enough to go shopping.