8. Which of the following procedures alone has high
efficacy at destroying Cryptosporidium oocysts?
A. Chlorination of water.
B. Boiling of water.
C. Chlorine dioxide disinfection of water.
D. Reverse osmosis filtration.
E. Sand filtration.
10. Which of the following animals are considered the
most important zoonotic reservoirs of human
cryptosporidiosis?
A. Sheep.
B. Antelope.
C. Dogs.
D. Cats.
E. Pigs.
9. Chlorination of water supply does not have efficacy
against which of the following organisms?
A. Giardia.
B. Escherishia coli.
C. Salmonella.
D. Cryptosporidia.
E. Shigella.
2018
AUGUST
9