How do animals or humans become infected with prions?
Contaminated food
Tissue transplant
Contaminated surgical instruments
All of the above
What is the vector for Lyme disease?
Deer tick
Parasitic worm
Bee
Mosquito
The first production of live but non-virulent forms of chicken cholera Bacillus was achieved by:
Pasteur
Salk
Jenner
Montague
What is a protozoan that is commonly found in lakes and streams that can cause severe diarrhea?
Streptococcus
E coli
HIV
Giardia
An infectious disease is one that is
Caused by all bacteria
Spread from person to person
Transferred by mosquitoes
Caused by a pathogen or its products
Malaria is spread by
Exhaled droplets
Houseflies
Contact with an infected person
Mosquitoes
The blood system combats infection by producing
Antibodies
Antigens
Antibiotics
Antiseptics
What is the body temperature of a normal man?
81.1oC
36.9oC
98.6oC
21.7oC
What is an epidemic disease?
A global outbreak of disease
A disease with clinically distinct symptoms whose incidence has increased, particularly over the last two decades
A disease that occurs suddenly and spreads rapidly to many people
A disease that occurs only occasionally and at unpredictable intervals
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%
