Vaccines are not effective against trypanosomiasis because
A) the organisms are never exposed to the immune system.
B) the organism is only weakly antigenic.
C) the organism can change its protein coat and thereby evade the immune response.
D) All of the choices are correct.
Correct Answer:
Verified
Q7: Humans become infected with the malarial parasite
Q8: All species of Leishmania utilize sand flies
Q9: Leishmania donovani causes
A)mucocutaneous leishmaniasis.
B)visceral leishmaniasis.
C)cutaneous leishmaniasis.
D)All of
Q10: African sleeping sickness is caused by
A)Giardia lamblia.
B)Trypanosoma
Q11: Which of the following fungi causes Valley
Q13: Which of the following is known to
Q14: Most systemic mycoses are acquired from _.
A)puncture
Q15: Blastomyces dermatitidis causes _.
A)valley fever
B)blastomycosis
C)San Joaquin fever
D)cryptococcosis
Q16: In humans,Cryptococcus grows as a _.
A)mold
B)yeast
C)dimorphic fungus
D)a
Q17: Which of the following is not caused
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents