Effects of flu vaccine , solely or accompanied by pneumovax-23 vaccine on clinical consequences of the respiratory diseases among Iranian pilgrims in Hajj

Background: Respiratory disorders are the most common diseases among Iranian pilgrims in Hajj. Some studies recommended flu and pneumococcal vaccines separately or in combination to reduce respiratory diseases occurrence and its morbidity. These effects are not clear in afflicted Hajj pilgrims. Objective: This is a cohort study that investigates the effects… (More)