Sentence 1: A host of people have become sick lately. 
 Sentence 3: She began coughing, and couldn't stop 
 Sentence 4:  She doubled over, trailing ropes of mucus from her mouth 
 Sentence 5:  Eventually she coughed her pants off and had to be hospitalized 
 Option 1: Everyone around me is coughing, in particular a young student I know. 
 Option 2: I've been staying away from all of the sick people.