Perinatal infections

Question 1

A newborn child is noted to have:
sensorineural deafness, 
congenital cataracts, 
patent ductus arteriosus, 
purpuric skin lesions
'salt and pepper' chorioretinitis.

Answer 1

= RUBELLA

Question 2

growth retardation
purpuric skin lesions
sensorineural deafness
seizures

Answer 2

= CMV

Question 3

Risk of rubella?

Answer 3

in first 8-10 weeks risk of damage to fetus is as high as 90%
damage is rare after 16 weeks

Question 4

Incubation/infec†ivy of rubella?

Answer 4

Remember that the incubation period is 14-21 days and individuals are infectious from 7 days before symptoms appear to 4 days after the onset of the rash.