Whooping cough shows up in Midwest and Pacific
Map showing states with over 100 whooping cough cases. Click for a larger image.
It has been clear for some weeks now that the whooping cough outbreaks this year are geographically related. There appear to be two clusters, a Midwest one and one that includes California and a couple of bordering states.
Texas, with the second highest number of cases of whooping cough, does not seem to have infected its neighbors.
This map uses the data from the Centers for Disease Control (CDC) MMWR report for week 31, ending August 7, 2010.
The data is provisional for several reasons. Updated data from the various states for any given week will be included in the cumulative totals as received, but not reflected in the weekly case counts. In addition, in the cases of California and Massachusetts, the CDC has told us by e-mail that the states are not reporting all their cases every week. Both states are said to be overwhelmed with the numbers of cases to be reported and have chosen to fall behind in various ways.
Further information about whooping cough / pertussis can be found at this link.
the attachments to this post:
Map_of_US_week 31 mmwr
