<unk>  or<unk> <unk>  illness is a chronic and multi-symptomatic disorder affecting military veterans of both sides of the 1990–1991 Persian<unk> <unk> . A wide range of acute and chronic symptoms have been linked to it, including fatigue, muscle pain, cognitive problems, insomnia, rashes and diarrhea. Approximately 250,000 of the 697,000 U.S. veterans who served in the 1991<unk> <unk>  are afflicted with enduring chronic multi-symptom illness, a condition with serious consequences. The Royal British Legion said research suggested up to 33,000 UK<unk> <unk>  veterans could be living with the<unk> , with 1,300 claiming a<unk>  pension for conditions connected to their service. In 2007 the Royal British Legion produced a comprehensive report entitled Legacy of Suspicion, which made recommendations about necessary research and compensation. The Royal British Legion is still campaigning for the UK government to properly address the suffering of veterans of the<unk> <unk> . From 1995 to 2005, the health of combat veterans worsened in comparison with nondeployed veterans, with the onset of more new chronic diseases, functional impairment, repeated clinic visits and hospitalizations, chronic fatigue<unk> -like illness, post-traumatic stress disorder, and greater persistence of adverse health incidents. Exposure to pesticides and exposure to pills containing pyridostigmine bromide (used as a pretreatment to protect against nerve agent effects) has been found to be associated with the neurological effects seen in<unk> . Other causes that have been investigated are sarin, cyclosarin, and emissions from oil well fires, but their relationship to the illness is not as clear. Studies have consistently indicated that<unk>  is not the result of combat or other stressors and that<unk> <unk>  veterans have lower rates of post-traumatic stress disorder (PTSD) than veterans of other<unk> s. According to a 2013 report by the Iraq and Afghanistan Veterans of America, veterans of the U.S.<unk> s in Iraq and Afghanistan may also suffer from<unk> , though later findings identified causes that would not have been present in those<unk> s.
Gulf War syndrome
SAHA syndrome
Toxic shock syndrome
Primrose syndrome
Proteus syndrome
Systemic inflammatory response syndrome
SUNCT syndrome
Severe fever with thrombocytopenia syndrome