Detection of Mimivirus from respiratory samples in tuberculosis-suspected patients

Acanthamoeba polyphaga mimivirus (APMV), a species of amoeba-infecting giant viruses, has recently emerged as human respiratory pathogens. This study aimed to evaluate the presence of Mimivirus in respiratory samples, collected from tuberculosis (TB)-suspected patients. The study was performed on 10,166 clinical respiratory samples from April 2013 to December 2017. Mimivirus was detected using a suicide nested-polymerase chain reaction (PCR) and real-time PCR methods. Of 10,166 TB-suspected patients, 4 (0.04%) were positive for Mimivirus , including Mimivirus-53, Mimivirus-186, Mimivirus-1291, and Mimivirus-1922. Three out of four patients, hospitalized in the intensive care unit (ICU), were mechanically ventilated. All patients had an underlying disease, and the virus was detected in both sputum and bronchoalveolar lavage samples. In conclusion, Mimivirus was isolated from TB-suspected patients in a comprehensive study. The present results, similar to previous reports, showed that Mimiviruses could be related to pneumonia. Further studies in different parts of the world are needed to additional investigate the clinical importance of Mimivirus infection.

Abstract licence: CC BY-NC-ND

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