(Abst.) Hospital-diagnosed pneumonia before age 20 years and MS risk on: March 11, 2021, 10:43:18 am #1 From PubMed (March 9, 2021), "Hospital-diagnosed pneumonia before age 20 years and multiple sclerosis risk": Hospital diagnosed pneumonia before age 20 years and multiple sclerosis risk - PubMed Pneumonia at 11-15 years of age was associated with MS, suggesting a possible role for inflammation of the respiratory system in the aetiology of MS during a period of susceptibility in adolescence... PubMed · pubmed.ncbi.nlm.nih.gov This caught my eye as I had hospital-diagnosed double bronchial pneumonia when I was 4. However, this study's significant findings concern people between the ages of 11 and 15, but it still has an interesting conclusion:QuotePneumonia at 11-15 years of age was associated with MS, suggesting a possible role for inflammation of the respiratory system in the aetiology of MS during a period of susceptibility in adolescence. Further research on respiratory infections prior to MS onset should be conducted to replicate this finding and determine explanatory causal mechanisms. Last Edit: March 11, 2021, 10:44:52 am by agate Logged MS Speaks--online for 20 yearsSPMS, diagnosed 1980. Avonex 2001-2004. Copaxone 2007-2010. Glatopa (glatiramer acetate 40mg 3 times/week) 12/16/20 - 3/16/24.