Being Sick

How do you homeschool whilst being sick?This week I've had the flu & really fallen hard.My husband has been looking after me & the children but in regards to the children getting schoolwork done it's a no go.I guess the children are learning all the time anyway aren't they? The atmosphere around them is creative & stimulating,natural learning takes place all the time.But it has made me wonder what if one of us got really sick.... It is such a blessing to be strong & healthy.