Search set	CIDG SRa	CENTRAL	MEDLINEb	EMBASEb	LILACSb
1	excreta disposal	excreta disposal	excreta disposal	excreta disposal	excreta disposal
2	sanitation	SANITATION	SANITATION	ENVIRONMENTAL SANITATION	sanitation
3	latrine OR toilet OR water closet OR privy	latrine OR toilet OR water closet OR privy	latrine OR toilet OR water closet OR privy	SANITATION	latrine OR toilet OR water closet OR privy
4	faeces OR defecation OR excrement OR waste	faeces OR defecation OR excrement OR waste	faeces OR defecation OR excrement OR waste	SOLID WASTE MANAGEMENT	faeces OR defecation OR excrement OR waste
5	1 OR 2 OR 3 OR 4	1 OR 2 OR 3 OR 4	1 OR 2 OR 3 OR 4	latrine OR toilet OR water closet OR privy	1 OR 2 OR 3 OR 4
6	diarrhea	DIARRHEA/EPIDEMIOLOGY OR DIARRHEA/MICROBIOLOGY OR DIARRHEA/PREVENTION AND CONTROL	DIARRHEA/EPIDEMIOLOGY OR DIARRHEA/MICROBIOLOGY OR DIARRHEA/PREVENTION AND CONTROL	faeces OR defecation OR excrement OR waste	diarrhea
7	waterborne	waterborne AND (infection* OR illness*)	waterborne AND (infection* OR illness*)	1‐6/OR	waterborne
8	6 OR 7	cholera OR shigell* OR dysenter* OR cryptosporid* or giardia* OR Escherichia OR clostridium	cholera OR shigell* OR dysenter* OR cryptosporid* or giardia* OR Escherichia OR clostridium	DIARRHEA/EPIDEMIOLOGY OR DIARRHEA/DISEASE MANAGEMENT OR DIARRHEA/PREVENTION	6 OR 7
9	5 AND 8	ENTEROBACTERIACEAE	ENTEROBACTERIACEAE	waterborne AND (infection* OR illness*)	5 AND 8
10	—	6 OR 7 OR 8 OR 9	6 OR 7 OR 8 OR 9	cholera OR shigell* OR dysenter* OR cryptosporid* or giardia* OR Escherichia OR clostridium	—
11	—	5 AND 10	5 AND 10	ENTEROBACTERIACEAE	—
12	—	—	Limit 11 to Human	8 OR 9 OR 10 OR 11	—
13	—	—	—	7 AND 12	—
14	—	—	—	Limit 13 to Humans	—