In new york during the second world war , it appears the opposite plan was in effect : in 1943 3662 soldiers reported that they had contracted some form of venereal disease in the city .
However , this ' conspiracy of silence ' , as its critics termed it , was challenged because of a growing professional recognition of the spread of venereal diseases and of the serious health implications .
Canine transmissible venereal tumour or ctvt is a very unusual form of cancer that is typically transmitted by mating , though it can also be spread by licking , biting or sniffing tumour-affected areas .