The following thread covers some concern about clusters.
Forums > CIP / CIDP Unbelievable odds?
It mentions on the old web site “prehacker” that a more extensive discussion occured. But that is now gone.
Here are some other posts:
Forums > Main Category > Main Forum GBS more in certain locations?
Forums > Main Category > Main Forum Oregon City a GBS Cluster?
Forums > Main Category > Main Forum Rarity of GBS
See extracts from the following article regarding clusters.
Mysterious syndrome coming in clusters
“We have experienced what we call a cluster of GBS cases,” said Dr. Art Leis, a neurologist with Methodist Rehabilitation Center in Flowood, where Beard is among six people being treated for the strange and mystifying syndrome.
The center’s spokeswoman said they had treated 20 GBS patients between 2000 and mid-2005 before this new crop of six patients all showed up within a few months of each other.
Having six GBS patients at the same time is, to put it plainly, a little weird.
Leis said it is still unclear if the cluster is a random, local phenomenon or if it is more widespread. Because GBS is not contagious, it is not a reportable disease. That means no one keeps track of its prevalence.
Two of the six people with it here received vaccinations in the weeks before coming down with it, Leis said. The apparent connection is still unclear.
see the entire article at: URL” [url]http://www.cidpusa.org/mystery.htm[/url] ” URL