ERRATA

On page 228, of vol. 81, issue number 3, 2003, the affiliation of Franklin White should read: Professor & Chair, Community Health Sciences, The Aga Khan University, Box 3500, Stadium Road, Karachi 74800, Pakistan (email: franklin.white@aku.edu). The reference following the sentence ending "... destructive effects of waterborne diseases." should cite reference (5). The web site listed in reference (4) should read: URL:http://www.medact.org.

The map published as Fig. 2 of the article ''Compatible poliomyeletis cases in India during 2000'' (page 5, of Vol. 81, issue number 1, 2003) of the Bulletin should have been as shown below.