Impact of Real-Time Multiplex PCR Testing for Respiratory Viruses on Antibiotic Use

Area of Science:

• Infectious Diseases
• Microbiology
• Clinical Diagnostics

Background:

• Real-time multiplex polymerase chain reaction (PCR) enhances the detection of viral respiratory tract infections.
• Optimizing antibiotic prescribing for respiratory infections is a critical public health concern.

Purpose of the Study:

• To evaluate the impact of real-time multiplex PCR testing on antibiotic utilization in patients with viral respiratory tract infections.

Main Methods:

• A retrospective study design was employed.
• Patients were categorized into groups based on diagnostic findings: influenza-like illness, viral pneumonia, bacterial pneumonia, and co-infection.
• Antibiotic use patterns were compared across these patient groups.

Main Results:

• Real-time multiplex PCR testing demonstrated increased detection rates for viral respiratory infections.
• Despite confirmed viral etiology via PCR, antibiotic prescribing remained high, especially in cases of viral pneumonia.

Conclusions:

• High antibiotic use persists even when viral infections are confirmed by PCR.
• Targeted antimicrobial stewardship interventions, including clinician education and integrated diagnostic-therapeutic strategies, are necessary to optimize antibiotic prescribing for respiratory infections.