Pulmonary cryptococcosis (pulmonary cryptococcosis) is an infectious lung disease caused by encapsulated fungi such as Cryptococcus neoformans and can cause severe illnesses such as pneumonia and meningitis in immunocompromised patients. However, because it can clinically resemble lung cancer or tuberculosis, diagnosis is often delayed, making early diagnosis and treatment critically important.

A study that provides clues for the early prevention and treatment of fungal respiratory infections such as pulmonary cryptococcosis has been reported by researchers at Jeonbuk National University (JBNU). JBNU announced that Jae-yong Oh, a graduate of the 'Clinical Physician Training Program Aiming for the Nobel Prize' and a first-year student in the Medical School, published a paper on the related findings in the American Journal of Respiratory and Critical Care Medicine (AJRCCM, IF 19.4).

AJRCCM is the flagship journal in respiratory and critical care published by the American Thoracic Society (ATS) and, due to its rigorous review process and high citation index, is one of the most influential medical journals worldwide.

The research team led by Jae-yong Oh and Endowed Professor Yongchul Lee (JBNU Medical School) conducted an in-depth review of the treatment course for pulmonary cryptococcosis that occurred in a patient with multiple myeloma. They proposed that recent acute respiratory viral infections such as COVID-19 may increase vulnerability to fungal infection and clinical treatment resistance.

The team, in collaboration with Professor Kyung-tae Lee's group at the Institute for Molecular Biology and Genetics, JBNU, analyzed the patient's lung tissue, identified the causative organism precisely by genetic testing, and comprehensively reviewed diagnostic imaging, histological findings, and the treatment course. In addition, by linking and analyzing a national COVID-19 cohort dataset including more than eight million people, they demonstrated the medical importance of secondary fungal infections following respiratory viral infection from multiple perspectives.

Endowed Professor Yongchul Lee said, 'Following Jun-hyung Park, who published a paper in Thorax last year, Jae-yong Oh has now published in AJRCCM, confirming that this program has truly become a cradle of respiratory research. We will continue to provide ongoing support so that young researchers can gain recognition on the global stage.'

Professor Jae-seok Jeong of the Division of Respiratory Allergy and Clinical Immunology commented, 'Although fungal infections occurring after respiratory viral infections have been rapidly increasing in clinical practice recently, their medical importance is not yet fully recognized. This study secured multiple lines of evidence and laid the foundation for the development of treatment strategies.'

Jae-yong Oh said, 'Thanks to the professors' passionate guidance and full support, I was able to achieve significant results. I intend to continue research on fungal infections including Cryptococcus and on immunity, and to contribute to advances in respiratory medicine.'