Protocol for studying co-infection between SARS-CoV-2 and Staphylococcus aureus in vitro

Area of Science:

• Microbiology
• Virology
• Infectious Diseases

Background:

• Bacterial co-infections are frequent complications of SARS-CoV-2 (Severe Acute Respiratory Syndrome Coronavirus 2) infection.
• Understanding the dynamics of viral-bacterial co-infections is crucial for developing effective treatments.
• Existing methods may not efficiently capture the kinetics of both pathogens simultaneously.

Purpose of the Study:

• To present a novel in vitro protocol for studying co-infection dynamics.
• To enable simultaneous quantification of SARS-CoV-2 and Staphylococcus aureus replication.
• To provide a flexible method applicable to various cell types and pathogen strains.

Main Methods:

• Development of a standardized in vitro protocol for co-infection experiments.
• Quantification of viral and bacterial replication kinetics within the same biological sample.
• Optional parallel extraction of host RNA and proteins for comprehensive analysis.

Main Results:

• The protocol successfully allows for the simultaneous assessment of viral and bacterial growth.
• Demonstrates the feasibility of quantifying replication kinetics for both SARS-CoV-2 and Staphylococcus aureus.
• The method is adaptable for different cell lines and a range of viral and bacterial species.

Conclusions:

• This protocol offers a robust framework for in vitro investigation of SARS-CoV-2 and bacterial co-infections.
• It facilitates a deeper understanding of pathogen interactions and host responses.
• The methodology is broadly applicable, supporting diverse research in infectious disease.