Investigation of Environmental Factors Associated With Transmission of T. Solium in Endemic Villages of Zambia

Inclusion Criteria: * Willing and able to participate in all aspects of the study, including providing blood and stool samples, participating in a questionnaire survey and group discussions, and taking oral anthelmintic tablets * Willing and able to provide informed consent (signature or thumbprint with impartial witness; assent for minors with parental consent). * Living in, attending school in, or regularly visiting the bore holes present in, the study communities. * Aged 10 years or older Exclusion Criteria: * Unwilling or unable to participate in some or all aspects of the study, including providing blood and stool samples, participating in a questionnaire survey and group discussions, or taking oral anthelmintic tablets. * Unwilling or unable to provide written (signature or thumbprint with impartial witness) informed consent (or assent for minors). * Living outside of, and not regularly visiting, or attending school in, the study communities. * Children aged less than 10 years. * Seriously ill individuals (people unable to engage in the normal activities of daily living without assistance because of their illnesses).