Please keep your germs to yourselves. Use a handkerchief and don't cough and sneeze over other people. Stay at home if you are contagious. My lungs were damaged by diesel pollution years ago and I finally had to give up working in an office when people came to work with chest infections boasting that they were on antibiotics as this resulted in my spending 3 weeks in hospital and 14 weeks on intravenous antibiotics at home. What fun!