Question

Case Study: Investigators contacted the directors of the four nursing homes in the Carrollton area. The three nursing homes connected to the public water supply reported substantial numbers of residents with acute gastroenteritis. The nursing home that used a well for their water supply reported no residents with acute gastroenteritis. On the basis of this information, the County Health Department issued a boil-water advisory on March 25.

Question 6: What is a boil-water advisory? How would you go about implementing one? What actions might improve the effectiveness of such an advisory?

Question 7: What studies or investigations might you undertake to confirm the hypothesis that the public water supply was the source of Ulster’s salmonellosis outbreak?

Answer 1

6a)A boil water advisory or boil water order is a public health advisory or directive given by government or health authorities to consumers when a committies drinking water is or could be contaminated by pathogens.

6b)To implement a boil water advisory we should priority to certain things. Advisory may include information about preparing food, bevarages, ice, dishwashing and hygiene such as brushing teeth and bathing. It is necessary to issue a notice related to the contents that a boil water advisory should include.

6c)Actions should take to improve the effectiveness includes,

-boil tap water even it is filtered

-use bittled or boiled water to prepare and cook food

-Brush teeth with boiled or bottled water

-use boiled water to clean the washable toys and surfaces

7)Studies or investigation that I took to confirm that the public water supply was the source of ulster salmonellosis

Considering a group of people who lived in a poor village who consumed water from a nearby well.Epdemiological evidences revealed the gross contamination of well with dead and decaying animal bodies, their fecal matter and garbage.Microbiological analysis of household and well water samples revealed the presence of heavy bacterial load.Lab investigations confirmed the presence of multi drug resistant strain of salmonella in 100%well water, 65%household water samples and 2% food items.