Many people who have contracted a disease called chicken pox were told by their doctors that they would never have this disease again. why?

The doctor more than likely told them they would never have this disease again because there body is able to fight it off because they have already been infected.

Explanation:

Their bodies can fight it off, chicken pox is probably easy to fight before symptoms start after they’ve had it

the last statement is correct i.e.

when your heart is not pumping enough blood around your body because your heart is severely failing, you may need an artificial heart. an artificial heart is a mechanical device, about the size of an orange, that is connected to your heart or implanted in your chest to or replace a failing heart.

i think it is pressuring someone to have sex

hope this : )