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 ...

Long COVID remains a frustrating medical mystery, affecting up to 1 in 10 people long after the initial infection fades. Now, scientists have uncovered a crucial clue hidden deep within the immune ...

In the sickest COVID-19 patients, SARS-CoV-2 doesn't just cause severe damage by directly infecting airway cells. The virus ...

Extreme fatigue, a racing pulse, shortness of breath, brain fog, aching joints—the symptoms of long COVID can vary widely, change unpredictably and be difficult to recognize as signs of the condition.

COVID-19 was never just a hit-and-run infection, and the latest science shows why. Even after the active virus is gone, fragments of its genetic material and spike proteins can linger, assemble into ...

New research shows that after the body's defenses kill the virus behind COVID-19, leftover digested chunks of SARS-CoV-2 spike protein can target specific immune cells based on their shape. The ...

Add Yahoo as a preferred source to see more of our stories on Google. Millions of people who recover from infections like COVID-19, influenza and glandular fever are affected by long-lasting symptoms.

Researchers found flu and COVID infections can awaken dormant cancer cells in mice and humans. Inflammation, IL-6 signaling, and immune cell dynamics were central to the reactivation process. Human ...