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.
Along with some of the more commonly known infectious diseases, Neglected Tropical Diseases (NTDs), are truly devastating to many developing countries. These largely preventable diseases continue to pose a major threat to health and economic growth in many developing countries.on-communicable diseases (NCDs), such as cancer, heart disease, lung disease, and diabetes, are now the major cause of death and disability worldwide.