NYC resident. I had two back-to-back sinus/chest infections in Late December/Early Jan. Worst illnesses I've had in years. Spent almost a month at home. I w

NYC resident. I had two back-to-back sinus/chest infections in Late December/Early Jan. Worst illnesses I've had in years. Spent almost a month at home. I was healthy for all of four or five days in between. Coincidentally, I got sick after several of my coworkers/close friends returned from trips to China.