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http://simmaronresearch.com/2017/07/giardia-chronic-fatigue-infectious-illness/
Cort summarises this paper and has a chat about giardia's role in me.cfs. Probably very relevant where there are outbreaks.
https://bmcimmunol.biomedcentral.com/articles/10.1186/s12865-017-0190-3
...
Giardia hasn’t historically ranked high as a potential cause of chronic fatigue syndrome (ME/CFS). Some anecdotal reports suggest that a Giardia outbreak may have occurred prior to the Incline Village ME/CFS outbreak in the 1980’s. More recently, Corinne Blandino’s severe, decades long case of ME/CFS – which originated with an exposure to Giardia at work – demonstrated how devastating a case of Giardia triggered ME/CFS can be.
Giardia is thought of as a minor infection – but it can have long lasting effects.
It wasn’t until city in Norway got exposed to Giardia in 2004, however, that Giardia, a protozoa, became one of the pathogens definitively linked with chronic fatigue syndrome (ME/CFS). Large studies (n=1254) examining the aftermath of the outbreak in a public water system in Bergen found that five years later, almost 50% of those originally infected still had symptoms of irritable bowel syndrome and/or chronic fatigue (post-infectious chronic fatigue).
“Other patients suffer a severe, long lasting illness, for which treatment is ineffectual, and even after the parasite has finally been eliminated, some sequelae persist, affecting quality of life and continuing to cause the patient discomfort or pain” (LJ Robertson et al, 2010)
Five percent suffered from fatigue severe enough for them to lose employment or be unable to continue their education. Interestingly, all had taken anti-parasitic drugs and all had apparently cleared the pathogen from their systems. Five years later, 30% were deemed to have an ME/CFS-like illness and almost 40% had irritable bowel syndrome (IBS).
Cort summarises this paper and has a chat about giardia's role in me.cfs. Probably very relevant where there are outbreaks.
https://bmcimmunol.biomedcentral.com/articles/10.1186/s12865-017-0190-3
...
Giardia hasn’t historically ranked high as a potential cause of chronic fatigue syndrome (ME/CFS). Some anecdotal reports suggest that a Giardia outbreak may have occurred prior to the Incline Village ME/CFS outbreak in the 1980’s. More recently, Corinne Blandino’s severe, decades long case of ME/CFS – which originated with an exposure to Giardia at work – demonstrated how devastating a case of Giardia triggered ME/CFS can be.
Giardia is thought of as a minor infection – but it can have long lasting effects.
It wasn’t until city in Norway got exposed to Giardia in 2004, however, that Giardia, a protozoa, became one of the pathogens definitively linked with chronic fatigue syndrome (ME/CFS). Large studies (n=1254) examining the aftermath of the outbreak in a public water system in Bergen found that five years later, almost 50% of those originally infected still had symptoms of irritable bowel syndrome and/or chronic fatigue (post-infectious chronic fatigue).
“Other patients suffer a severe, long lasting illness, for which treatment is ineffectual, and even after the parasite has finally been eliminated, some sequelae persist, affecting quality of life and continuing to cause the patient discomfort or pain” (LJ Robertson et al, 2010)
Five percent suffered from fatigue severe enough for them to lose employment or be unable to continue their education. Interestingly, all had taken anti-parasitic drugs and all had apparently cleared the pathogen from their systems. Five years later, 30% were deemed to have an ME/CFS-like illness and almost 40% had irritable bowel syndrome (IBS).
Giardia hasn’t historically ranked high as a potential cause of chronic fatigue syndrome (ME/CFS). Some anecdotal reports suggest that a Giardia outbreak may have occurred prior to the Incline Village ME/CFS outbreak in the 1980’s. More recently, Corinne Blandino’s severe, decades long case of ME/CFS – which originated with an exposure to Giardia at work – demonstrated how devastating a case of Giardia triggered ME/CFS can be. Giardia long lasting effects Giardia is thought of as a minor infection – but it can have long lasting effects. It wasn’t until city in Norway got exposed to Giardia in 2004, however, that Giardia, a protozoa, became one of the pathogens definitively linked with chronic fatigue syndrome (ME/CFS). Large studies (n=1254) examining the aftermath of the outbreak in a public water system in Bergen found that five years later, almost 50% of those originally infected still had symptoms of irritable bowel syndrome and/or chronic fatigue (post-infectious chronic fatigue). “Other patients suffer a severe, long lasting illness, for which treatment is ineffectual, and even after the parasite has finally been eliminated, some sequelae persist, affecting quality of life and continuing to cause the patient discomfort or pain” (LJ Robertson et al, 2010) Five percent suffered from fatigue severe enough for them to lose employment or be unable to continue their education. Interestingly, all had taken anti-parasitic drugs and all had apparently cleared the pathogen from their systems. Five years later, 30% were deemed to have an ME/CFS-like illness and almost 40% had irritable bowel syndrome (IBS).