DR KUNAL MAHAJAN: most common cause of meningitis among different age groups

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DR KUNAL MAHAJAN

mbbs(rpgmc tanda)

md med student(pgims rohtak)

Monday, April 12, 2010

most common cause of meningitis among different age groups

most common cause of meningitis in india

a) till 2 months---------------------------gram negative bacteria esp.klebsiella,e.coli

b)2 months -3 years----------------------H.influenzae type B

c)3 years-20 years-------------------------streptococcus pneumoniae

d)>20 years----------------------------------streptococcus pneumoniae

most common cause of meningitis in WESTERN WORLD(DEVELOPED COUNTRIES)

a)till 2 months----------------------------group B streptococci

b))2 months -3 years------------------streptococcus pneumoniae

c)3 years-20 years---------------------neisseria meningitidis

d)>20 years-------------------------------streptococcus pneumoniae

i have written both india and western trends here to make u realise why mudit khanna and many other guides differ in their own answers on this ques from one paper to another.
this is because they use references from books like nelson,which are based on data collected in western world.

e.g in wetern world vaccination against H.influenzae is routinely done that is why H.influenzae meningitis is not common there
but in developing world (in our country also) even routine vaccination like OPV and BCG donot have 100 %coverage..forget about H.INFLUENZAE
so thats why among 2 months -3 years h.influenzae is most common cause in india
while in west,,,it is rare.

i have given both trends, but to solve mcqs u have to learn ONLY THE TREND IN INDIA