ANSC 326 Exam 3 Questions with Complete Solutions

warmer conditions Correct Answer-When does chance of infection go up for disease? incubation period Correct Answer-time between exposure to disease agent and point of which symptoms appear 3-4 days Correct Answer-incubation period for EHEC infectious- can cause diarrhea, bloody diarrhea, HUS, TTP (severe cases) Correct Answer-EHEC diseases 9-12 cells Correct Answer-What is the infectious dose for EHEC? non-intact fresh beef, fresh produce, dairy products Correct Answer-What is the primary source for EHEC? gut tracks of animals (fecal shedding) Correct Answer-What is the primary reservoir for EHEC? inability to ferment sorbitol and lack of production of B-glucoronidase Correct Answer-How is E.coli O157:H7 distinguished? HUS, TTP Correct Answer-what can stx1 and 2 produced from EHEC cause?