H. pylori appears connected to stomach cancer and ulcers.
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Q36: HBV is mainly spread by
A)blood.
B)blood products.
C)semen.
D)saliva.
E)blood,blood products
Q46: Virulent strains of shigella typically carry a
Q48: Sucrose is one of the major contributors
Q49: Amebiasis
A) is caused by C. parvum.
B) often
Q49: Cyclospora cayetanensis has, so far, not been
Q53: Giardiasis may be contracted from
A) another person.
B)
Q54: The saliva of asymptomatic carriers of herpes
Q54: Entamoeba histolytica
A) causes amebiasis.
B) may form cysts.
C)
Q56: The oocytes of Cyclospora cayetanensis
A)are mature when
Q56: Both Giardia and
C. parvum are resistant to
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