<prompt> A 30 yrs old female has sputum postive TB. Her child is 3 years old. What is the recommended chemoprophylaxis-INH 3mgkg for 3 monthsINH 5mgkg for 3 monthsINH 3mgkg for 6 monthsINH 5mgkg for 6 months  <response>: The dose of INH for chemoprophylaxis is 5mgkg administered daily for 6 month. Park;s textbook of preventive and social medicine,K.Park,23rd edition,page no:195 p 