19. Which of the following is NOT true about anthrax? a) The most important rout

Question

19. Which of the following is NOT true about anthrax? a) The most important route of transmission is from person to person b) Infection can occur on the skin, in the lungs or in the gastrointestinal tract c) Caused by the endospore-forming bacterium Bacillus anthracis d) Etiologic agent has been used for biological terrorism in the U.S. e) None of the above (All of these are true about anthrax) 20. Which of the following is mismatched? a) Plasmodium -protozoan that causes malaria b) African trypanosomiasis (sleeping sickness) - viral disease transmitted by mosquitoes c) Cytomegalovirus -causes retinitis in Acquired Immunodeficiency Syndrome patients d) Hepatitis B -Viral infection transmissible through body fluids e) None of the above (All are matched correctly) 21. Which of the following is TRUE about rheumatic fever (rheumatic heart disease)? a) It is a result of bacterial colonization of the endothelial lining of the heart and joints b) It is a complication of Staphylococcus aureus infection of the upper respiratory tract c) It is an infection of the heart by bacteria carried from distant sites of focal infection d) Damage to heart valves caused by immune response against Streptococcus pyogenes M protein e) None of the above are true about rheumatic fever

Explanation / Answer

19) Option 'a' is the correct answer.

The most important mode pf transmission of anthrax is through contact with bacterium spores present in infectious animal products through breathing, eating, or through an area of broken skin. It does not spread fromperson to person, i.e., directly between people.

20) Option 'b' is the correct answer.

African trypanosomiasis (sleeping sickness) is caused by a protozoan parasite of the species Trypanosoma brucei. The vector for this parasite is Tsetse fly and not mosquito. It is usually transmitted by the bite of an infected tsetse fly and are most common in rural areas.

21) Option 'd' is the correct answer.

M protein of Streptococcus pyogenes is a highly antigenic virulence factor and is responsible for damage to the heart valves in the form of fibrosis and scarring of valve leaflets and other abnormalities that can result in valve stenosis and valve regurgitation.

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.