Epidemiology
Globally about 106 million cases of chlamydia and 106 million cases of gonorrhea occurred in 2008. The number of cases of PID; however, is not clear. It is estimated to affect about 1.5 percent of young women yearly. In the United States PID is estimated to affect about one million people yearly. Rates are highest with teenagers and first time mothers. PID causes over 100,000 women to become infertile in the US each year. References
External links

CDC
Unpacking PID: Mysterious Microbes, Diagnostic Dilemmas and Triple Treatments Webinar - 2013
It may seem cruel that those whose sufferings are real, whose illness has been brought on by enemy action and very likely in the course of patriotic service, should be treated with such apparent callousness. But there can be no doubt that in an overwhelming proportion of cases, these patients succumb to ‘shock’ because they get something out of it. To give them this reward is not ultimately a benefit to them because it encourages the weaker tendencies in their character. The nation cannot call on its citizens for courage and sacrifice and, at the same time, state by implication that an unconscious cowardice or an unconscious dishonesty will be rewarded. Development of psychiatry
At the beginning of World War II, the term "shell shock" was banned by the British Army, though the phrase "postconcussional syndrome" was used to describe similar traumatic responses. Society and culture
Shell shock has had a profound impact in British culture and the popular memory of World War I. At the time, war writers like the poets Siegfried Sassoon and Wilfred Owen dealt with shell shock in their work. Sassoon and Owen spent time at Craiglockhart War Hospital, which treated shell shock casualties. Author Pat Barker explored the causes and effects of shell shock in her Regeneration Trilogy, basing many of her characters on real historical figures and drawing on the writings of the first world war poets and the army doctor W. H. R. Rivers.