My 6 month old baby has had a bacterial throat infection twice in the past 8 weeks what is it caused from plz?

Identify bacteria: We all have bacteria in our mouths and throats. If your infant is actually sick from this, then it is essential that the child have a complete throat culture to identify which bacteria are present and which antibiotics are needed to clear the infection. Throat infections in this age group are a bit unusual, so i would talk to your pediatrician about checking immunoglobulin levels if this persists.