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Infection ; 49(6): 1299-1306, 2021 Dec.
Article in English | MEDLINE | ID: covidwho-1482322


PURPOSE: Thorough knowledge of the nature and frequency of co-infections is essential to optimize treatment strategies and risk assessment in cases of coronavirus disease 2019 (COVID-19). This study aimed to evaluate the multiplex polymerase chain reaction (PCR) screening approach for community-acquired bacterial pathogens (CABPs) at hospital admission, which could facilitate identification of bacterial co-infections in hospitalized COVID-19 patients. METHODS: Clinical data and biomaterials from 200 hospitalized COVID-19 patients from the observational cohort of the Competence Network for community-acquired pneumonia (CAPNETZ) prospectively recruited between March 17, 2020, and March 12, 2021 in 12 centers in Germany and Switzerland, were included in this study. Nasopharyngeal swab samples were analyzed on hospital admission using multiplex real-time reverse transcription (RT)-PCR for a broad range of CABPs. RESULTS: In total of 200 patients Staphylococcus aureus (27.0%), Haemophilus influenzae (13.5%), Streptococcus pneumoniae (5.5%), Moraxella catarrhalis (2.5%), and Legionella pneumophila (1.5%) were the most frequently detected bacterial pathogens. PCR detection of bacterial pathogens correlated with purulent sputum, and showed no correlation with ICU admission, mortality, and inflammation markers. Although patients who received antimicrobial treatment were more often admitted to the ICU and had a higher mortality rate, PCR pathogen detection was not significantly related to antimicrobial treatment. CONCLUSION: General CABP screening using multiplex PCR with nasopharyngeal swabs may not facilitate prediction or identification of bacterial co-infections in the early phase of COVID-19-related hospitalization. Most patients with positive PCR results appear to be colonized rather than infected at that time, questioning the value of routine antibiotic treatment on admission in COVID-19 patients.

COVID-19 , Coinfection , Community-Acquired Infections , Legionella pneumophila , Pneumonia , Cohort Studies , Coinfection/diagnosis , Coinfection/epidemiology , Community-Acquired Infections/diagnosis , Humans , Multiplex Polymerase Chain Reaction , Prospective Studies , SARS-CoV-2
Emerg Microbes Infect ; 10(1): 1515-1518, 2021 Dec.
Article in English | MEDLINE | ID: covidwho-1313723


We show a shift in the prevalence of respiratory viral pathogens in community-acquired pneumonia patients during the COVID-19 pandemic. Our data support the efficiency of non-pharmaceutical interventions on virus circulation except for rhinoviruses. The consequences of an altered circulation on subsequent winter seasons remain unclear and support the importance of systematic virological surveillance.

COVID-19/epidemiology , Community-Acquired Infections/epidemiology , Pneumonia/epidemiology , Respiratory Tract Infections/epidemiology , Adult , Aged , Bacteria/classification , Bacteria/genetics , Bacteria/isolation & purification , COVID-19/virology , Community-Acquired Infections/microbiology , Community-Acquired Infections/virology , Female , Germany/epidemiology , Humans , Male , Middle Aged , Pandemics , Pneumonia/microbiology , Pneumonia/virology , Prevalence , Prospective Studies , Respiratory Tract Infections/microbiology , Respiratory Tract Infections/virology , SARS-CoV-2/genetics , SARS-CoV-2/physiology , Viruses/classification , Viruses/genetics , Viruses/isolation & purification , Young Adult