A Tetanus

B Anthrax

C Brucellosis

D Coccidioidomycosis

A Mumps

B Influenza

C Measles

D Chicken pox

A It is diagnosed when the infant has IgM antibodies at bih

B It is diagnosed when Ig G antibodies persist for more than 6 months

C M.C. congenital defects are deafness, cardiac malformation and cataract

D Infection after 16 weeks of gestation result in major congenital defects

A Trachoma

B Epidemic conjunctivitis

C Cataract

D Onchocerciasis

A Quantitative data of a group of patients

B Qualitative data of a group of patients

C Data collected on nominal scale

D Data collected on ordinal scale

A ab

B a

C ad

D bc

A Antigenic drift

B Antigenic shift

C Cyclic trends

D Mosaicsm

A BMI

B Ponderal's index

C Broca's index

D Corpulence index

A A period of communicability

B Serial interval

C Incubation period

D Generation time

A Samples are similar to those in simple Random sampling

B Is a Rapid and simple method

C The sample size may very according to study design

D It is a type of probability sample