Against which diseases can you be immunized? hepatitis a hepatitis b hepatitis c influenza the common cold tetanus typhoid rabies aids polio yellow fever diabetes

There Are immunization for many diseases, each of which are required per country. Hepatitis A and B do have vaccinations, and Hepatitis C while not having a vaccine does have an experimental cure. All known strains of Influenza do have a vaccine, and are rotated based on the mot probable type for that year. Tetanus is usually given with a Tetanus, Diptheria, and Pertusis combination. Rabies also has a vaccine against, and while mostly removed from the world most people still get the Polio Vaccine. Typhoid and Yellow Fever tend to be vaccines in places which still are indigenous for diseases, like tropical third world countries. 

Good samaritan law protects civilians when they render aid to someone in need.