Vital Signs - Study Links Exposure to 5 Pathogens With Higher Risk for Stroke - NYTimes.com

"A new study is linking cumulative exposure to five common pathogens with an increased risk for stroke. The infections in order of significance are Chlamydia pneumoniae, Helicobacter pylori, cytomegalovirus and herpes simplex viruses 1 and 2, according to the study, published online on Nov. 9 in The Archives of Neurology. “Each of these common pathogens may persist after an acute infection and contribute to perpetuating a state of chronic low-level infection,” said the paper’s lead author, Dr. Mitchell S. V. Elkind, an associate professor of neurology at Columbia University Medical Center."