Design and operation of torpedo tubes installed on German U-Boats during WWII did not differ greatly from other such designs in the world. They used pressurized air to launch the torpedo and automatic venting after the launch.
These quarantinable diseases include cholera, diphtheria, infectious tuberculosis, plague, smallpox, yellow fever, viral hemorrhagic fevers, severe acute respiratory syndrome, and influenza caused by novel or reemerging influenza viruses that are causing or have the potential to cause a pandemic.
Communicable diseases can be broken down into five different categories: respiratory diseases (common cold and pneumonia), intestinal diseases (dysentery, cholera, typhoid, paratyphoid fevers), insect borne diseases (malaria, typhus, yellow fever, dengue), sexually transmitted diseases (syphilis, gonorrhea, chancroid, AIDS), and miscellaneous diseases (tetanus, rabies, dermatophytosis, tuberculosis).