Constraints within ministries of health to implement a national plan of action.
D000818:Animals; D003365:Costs and Cost Analysis; D003906:Developing Countries; D001330:Electronic Data Processing; D006281:Health Occupations / Q000193:education; D006801:Humans; D007846:Laundering; D009313:National Health Programs; D012499:Sanitation; D012552:Schistosomiasis / Q000453:epidemiology / Q000517:prevention & control*; D012908:Snails; D013223:Statistics as Topic; D014038:Toilet Facilities; D014881:Water Supply; D014944:World Health Organization