The complement system in teleost fish constitutes a cornerstone of innate defence, integrating classical, lectin and alternative activation routes to eliminate pathogens and shape inflammatory ...

The complement system, a central arm of innate immunity, comprises a network of plasma and membrane-bound proteins that detect and eliminate pathogens. In severe COVID-19, SARS-CoV-2 triggers ...

Louse-borne relapsing fever is an acute bacterial infection that triggers recurring episodes of high fever. It is caused by the spirochete Borrelia recurrentis, which is a spiral-shaped bacterium ...

Our immune system works around the clock to protect us from bacteria, viruses, and other harmful germs. It also helps repair damaged tissues after injuries. One of its most important defense tools is ...