A person with no sign of disease but may transmit, it is 
called: (ESIC Chennai May 2012) 
a. An allergic person b. Immune person c. A resistant person 
d. A carrier person 

Denominator in Crude Birth Rate: 
a. Mid-year population b. Total number of birth 
c. 1000 live birth. 
d. Total number of live birth in a year 

Basic unit of the society: (RRB Feb 2012) 
a. Individual b. Family c. PHC d. County 

Infant mortality rate (IMR) is defined as number or deaths of 
infants under age one per: a. 1000 births b. 1000 live births c. 1000 midyear population d. 1000 women of reproductive age group 

Quarantine stands for: 
a. Time period between infection and confirmatory diagnosis 
b. Time period between diagnosis and initiation of treatment 
c. Time period between infection and multiplication of 
organism d. Longest incubation period 

Major cause of perinatal mortality is: a. Malnutrition b. Congenital anomalies c. Birth asphyxia d. Both a and b 

Perinatal mortality rate includes: a. 37 weeks to 1st week after birth b. 28 weeks to 1st week after birth c. 20 weeks to 1st week after birth d. Before preterm labor 

Annual Under five deaths globally reported are: a. 6 million b. 8 million c. 10 million d. 12 million 

Time interval between primary and secondary case is known 
as: 
a. Extrinsic incubation period b. Intrinsic incubation period c. Serial interval 
d. Window period