1 Private day trip on a yacht for up to four people through Corales del Rosario Islands with lunch and soft drinks on board prepared by a private chef (once per stay). 2  Swim and snorkel in the clear waters of the Caribbean Sea. 3  Dinner for two, six course dinner for two in Alma Restaurant.
Medical Definition of diphtheria. : an acute febrile contagious disease typically marked by the formation of a false membrane especially in the throat and caused by a bacterium of the genus Corynebacterium (C. diphtheriae) which produces a toxin causing inflammation of the heart and nervous system.
Causes and Transmission. 1  Diphtheria is a bacterial infection caused by the bacterium Corynebacterium diphtheriae. 2  Diphtheria is spread (transmitted) from person to person, usually through respiratory droplets, like coughing or sneezing.iphtheria is an infection caused by the bacterium Corynebacterium diphtheriae. Diphtheria causes a thick covering in the back of the throat. It can lead to difficulty breathing, heart failure, paralysis, and even death.