Hello. I am doing an exercise on the topic of health and I've come across this sentence: "He has an infectious disease, so do not go close to him in case you become ill too." Source: 'get your message across' by Grzegorz Szpila, published by EGIS. I was supposed to fill in the gap in "He has ................., so do not ... " But I have difficulty in translating the whole sentence. I can understand the sentence: "do not use the elevator in case there is a fire." Or "He has an infectious disease, so do not go close to him because it is possible you could become ill too." What do you think?