A quarter century of water supply safety; as it looks to your State Board of Health.
D001432:Bacteriology; D035843:Biomedical Research; D006262:Health; D006801:Humans; D012449:Safety; D014435:Typhoid Fever / Q000517:prevention & control*; D014881:Water Supply / Q000382:microbiology*
TYPHOID FEVER/prevention and control; WATER SUPPLY/bacteriology