Throat swab diagnosis

Normal human pharyngeal isthmus culture should have normal oral flora, without the growth of pathogenic bacteria. The bacteria in the pharynx all come from the outside world and are not pathogenic under normal circumstances, but infections can occur when the body's systemic or local resistance declines and other external factors lead to diseases. Therefore, bacterial culture of throat swab can isolate pathogenic bacteria, which is helpful for the diagnosis of diphtheria, suppurative tonsillitis, acute pharyngitis, etc.