<prompt> Broncho penumonia due to measles occurs due toSinusitisImmunomodulationBronchial obstructionAspiration  <response>: Most complications of measles involve the respiratory tract ,like broncho pneumonia and it result from secondary bacterial infections of the respiratory tract that are attributable to a state of immunosuppression lasting for several weeks to months after acute measles. reference:Harrison s medicine-18th edition,page no:1603. 