Contagious disease is spread by
Infected droplets in exhaled air
Mosquitoes, or other biting insects
Contaminated food
Direct or indirect contact with an infected person
Malaria is spread by
Exhaled droplets
Houseflies
Contact with an infected person
Mosquitoes
Tetanus toxoid is usually given to humans:
Absorbed to Aluminum hydroxide
With complete Freund's adjuvant
Without the addition of any other agent
Together with the toxin
What is the minimum percentage of children which needs to be vaccinated successfully in order to achieve herd immunity to diphtheria;
100%
10%
50%
75%
What percentage of mortality is attributed to communicable diseases in Asia ?
24%
39%
31%
19%
Which of the following are sexually transmitted diseases?
Typhoid fever
Syphilis
Cholera
Anemia
The first production of live but non-virulent forms of chicken cholera Bacillus was achieved by:
Pasteur
Salk
Jenner
Montague
How do animals or humans become infected with prions?
Tissue transplant
Contaminated surgical instruments
All of the above
What is the body temperature of a normal man?
81.1oC
36.9oC
98.6oC
21.7oC
What is a sporadic disease?
A disease with clinically distinct symptoms whose incidence has increased, particularly over the last two decades
A disease that occurs only occasionally and at unpredictable
A disease that is always present in a population
A global outbreak of disease
