Objective To establish proper management of Pneumocystis jiroveci pneumonia (PCP) in
rheumatoid arthritis (RA) patients treated with infliximab. PCP has been observed in 0.4% of …

COVID-19, a novel coronavirus-related illness, has spread worldwide. Patients with apparently
mild/moderate symptoms can suddenly develop severe pneumonia. Therefore, almost all …

Background Pulmonary alveolar proteinosis is a disease characterized by abnormal
accumulation of surfactant in the alveoli. Most cases are autoimmune and are associated with an …

Background Viral infection is one of the risk factors for asthma exacerbation. However, which
pathogens are related to asthma exacerbation in adults remains unclear. Objective The …

Objective This study investigated the sex‐associated difference in the impact of obesity on
antibody response to a COVID‐19 vaccine. Methods This study included 2,435 health care …

Background and objective: The risk of pneumonia is increased among COPD patients using
inhaled corticosteroids (ICS). However, there is uncertainty regarding the association …

Background The QuantiFERON-TB Gold Plus (QFT-Plus) was introduced in 2015 as a new
generation of interferon-gamma release assays (IGRAs) designed to detect Mycobacterium …

Angiotensin converting enzyme 2 (ACE2) and transmembrane protease serine 2 (TMPRSS2),
two receptors on the cell membrane of bronchial epithelial cells, are indispensable for …

The world is facing an unprecedented challenge in every place that is affected by the
spreading COVID-19 pandemic. With China recording fewer and fewer cases, Europe and the …

Background The current gold standard in coronavirus disease (COVID-19) diagnostics is
the real-time reverse transcription–polymerase chain reaction (RT-PCR) assay for detecting …