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The photomicrograph on the left represents two house flies in
love. Which of the following may be carried phoretically by
these flies (Hint: Members of the Muscidae and Fanniidae are known
mechanical vectors
for over 100 different diseases, including viruses, bacteria, protozoa,
and helminths)?
Cryptosporidium parvum
Giardia duodenalis
Sarcocystis spp.
Toxoplasma gondii
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