Representatives from 40 states and from regulatory and public health a
gencies, water utilities, and advocacy groups met last year to discuss
prevention and control of waterborne cryptosporidiosis. Workgroups ad
dressed surveillance systems and epidemiologic study designs, public h
ealth responses when oocysts are detected in drinking water, cryptospo
ridiosis in immunocompromised individuals, and water sampling methods
and interpretation of results. The groups defined problems associated
with these issues and developed strategies that could be used initiall
y to manage these problems. An outgrowth of the workshop has been the
formation of the Working Group on Waterborne Cryptosporidiosis, which
holds regular teleconferences, In addition, several task forces are wo
rking to address strategies proposed in this report.