A. ELISA IS – ve
B. Western Blot is – ve
C. Both are – ve
D. PCR is – ve
✅ The correct answer is option Both are – ve.
Medical
Which of the following statement about P24 antigen of HIV is Not True ?
A. It can be detected during the window period
B. Free P24 antigen disappears after the appearance of IgM response to it:
C. Virus load parallel P24 titre
D. It remains during asymptomatic phase
✅ The correct answer is option It remains during asymptomatic phase.
The causative organism for cat-scratch disease is______________?
A. Chlamydia trachomatis
B. Donovania granulomatis
C. Bartonella henselae
D. Hemophilia ducreya
✅ The correct answer is option Bartonella henselae.
A full course of immunization agianst. Telanus with 3 doses to Tetanus toxoid, confers immunity for how many years ?
A. 5
B. 10
C. 15
D. 20
✅ The correct answer is option 10.
Which of the following are correctly matched ?
A. Transfer of antibody from mother to child is through colostrum and acquired passive immunity naturally
B. Injection of antibodies (Hepatitis) is artificially acquired passive immunity
C. Antigenic stimulus given by vaccine (polio) is artificial active immunity
D. All of the above
✅ The correct answer is option All of the above.
True about immune response of hepatitis B is__________________?
A. Antibody of HBs Ag is associated with resistance to infection
B. Antibody to HBC is not protective
C. Highest titres of anti HBC are found in persistent carriers of HBs Ag
D. CMI disappears soon after recover
✅ The correct answer is option Antibody of HBs Ag is associated with resistance to infection.
Mycobacterium tuberculosis is differentiated from other atypical mycobacteria by______________?
A. Niacin test
B. AFB staining
C. Pas staining
D. None of the above
✅ The correct answer is option Niacin test.
The presence of Which of the following factors in viruses makes protective vaccines a possibility ?
A. Enzymes
B. Protein coat
C. Polysaccharide
D. Lipids
✅ The correct answer is option Protein coat.
Which of the following organisms are arranged in cubical packets of eight cocci________________?
A. Staphylococcus
B. Micrococcus
C. Sarcina
D. Aerococcus
✅ The correct answer is option Sarcina.
Opacity around colonies of Clostridium perfringens is due to_________________?
A. Theta toxin
B. Lecithinase
C. Desmolase
D. Cytokinin
✅ The correct answer is option Lecithinase.