In spite of reasonably aggressive infection control (hand sanitizer stations at every food venue, the theater and throughout the ship; sneeze guards at all buffet food stations; hand sanitizer stations at security, disembarkation and tender sites), one week into our Cape Horn cruise on the Crown Princess and the coughing started. It could have been worse – norovirus, legionnaires, or worse. Hardly a plague ship – but still – by cruise-end a full quarter of the ship passengers were subtly coughing into their elbows, collars or handkerchiefs. A dry – barely productive cough – but a cough none-the-less. Not much the ship can do – or the passengers – against an aerosol pox. And we’d taken precautions – Immune Support, etc.