I'm a nurse. My job is important and very hard. I'm responsible for my patients and I have to work hard to help them and make them happy. Their comfort is the most important thing to me. It's dangerous work because in hospitals infections are an ever present threat. "The nurse is a gallery for infections" is an expression I don't understand. I made a guess what you meant to say.

I'm a nurse. My job is hard and very important. I'm responsible for my patients, and I have to work hard to help and make them happy. My patient's comfort is the most important. My job can also be dangerous becaus a nurse is gallery for infections.

I am a nurse. My job is very important and very hard. And I'm responsible for my patients and I have to work hard to attend to them and make them happy. The comfort of the patients is the most important. My job is dangerous because the nurse is a gallery for infections.