Respiratory Microbial Co-infection With SARS-CoV-2

Area of Science:

• * Infectious Diseases
• * Respiratory Medicine
• * Epidemiology

Background:

• * Pandemics often involve co-infections with multiple pathogens.
• * Respiratory pathogens can mimic or exacerbate SARS-CoV-2 symptoms.
• * Understanding co-pathogen prevalence is crucial for pandemic management.

Purpose of the Study:

• * To determine the prevalence and types of respiratory co-infections in individuals tested for SARS-CoV-2.
• * To analyze associations between co-infections and SARS-CoV-2 status, age, and living situation.

Main Methods:

• * Analysis of data from 12,075 U.S. subjects tested for SARS-CoV-2 in March-April 2020.
• * Identification and quantification of various respiratory pathogens.
• * Statistical comparison of co-infection rates between SARS-CoV-2 positive and negative groups.

Main Results:

• * Non-SARS-CoV-2 respiratory infections were present in 86% of SARS-CoV-2+ subjects versus 76% of SARS-CoV-2- subjects (p < 0.0001).
• * Common co-pathogens included *K. pneumoniae* and *M. catarrhalis*, capable of causing severe respiratory illness.
• * Advanced age and nursing home residency correlated with higher rates of SARS-CoV-2 infection and co-infection.

Conclusions:

• * Co-infection with other respiratory pathogens is frequent in individuals with suspected SARS-CoV-2.
• * Identifying co-pathogens is vital for accurate diagnosis and effective treatment of respiratory illnesses during the pandemic.
• * Targeted testing for co-pathogens can improve patient outcomes.