What is an emerging disease?
Particularly over the last two decades
A disease with clinically distinct symptoms whose incidence has increased
A disease that occurs only occasionally and at unpredictable intervals
A disease that is always present in a population
What is a protozoan that is commonly found in lakes and streams that can cause severe diarrhea?
Streptococcus
E coli
HIV
Giardia
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 percentage of mortality is attributed to communicable diseases in Asia ?
24%
39%
31%
19%
Malaria is spread by
Exhaled droplets
Houseflies
Contact with an infected person
Mosquitoes
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 global outbreak of disease
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%
Which of the following are water-borne diseases ?
Influenza
Cholera
Anemia
Tuberculosis
What is the vector for Lyme disease?
Deer tick
Parasitic worm
Bee
Mosquito
Which of the following are sexually transmitted diseases?
Typhoid fever
Syphilis
