Clinicians continue to question the usefulness of microscopic examination of Gram-stained sputum specimens ("Gram staining") and sputum culture for diagnosis of pneumonia. We analyzed the sensitivity ...

In a recent study, researchers have unveiled the presence of peculiar microscopic structures in the blood of Long COVID patients. These formations, reported on November 13, 2025, are described as ...

In short supply, the samples are essential for the creation of coronavirus antibody tests that can help end lockdowns. Several companies are racing to capitalize on that. A blood sample drawn for ...

Scientists have discovered strange microscopic structures in the blood of people with Long COVID—clusters of tiny microclots tangled together with sticky immune webs known as neutrophil extracellular ...