Seasonal variation of multiple sclerosis exacerbations in Arizona

Colin R. Bamford, William A. Sibley, Cole Thies

Research output: Contribution to journalArticlepeer-review

68 Scopus citations


We studied 178 MS patients and 82 controls for 5 years. A monthly pattern in the frequency of exacerbations in Arizona differed from the patterns seen in other regions of the world. Exacerbations were most common in warmer months. No explanation for this was found. In this prospective study, the frequency of viral infections in the MS patients was lower than in the controls.

Original languageEnglish (US)
Pages (from-to)697-701
Number of pages5
Issue number6
StatePublished - Jun 1983

ASJC Scopus subject areas

  • Clinical Neurology


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