Generally, a disease like this is caused by an infectious agent and not spread between people. Neurosyphilis -- tabes dorsalis, although infectious, is not a genetic disease. It is not caused by a defective or abnormal gene.
1 Movies and animated cartoons. 2  While some color film processes (including hand coloring) were experimented with and in limited use from the earliest days of the motion picture, the switch from most films being in black-and-white to most being in color was gradual, taking place from the 1930s to the 1960s.
The first modern ('integrated tri-pack') color film, Kodachrome, was introduced in 1935 based on three colored emulsions. Most modern color films, except Kodachrome, are based on technology developed for Agfacolor (as 'Agfacolor Neue') in 1936.