Louse-borne relapsing fever is caused by the spirochete bacterium Borrelia recurrentis, which is transmitted by body lice ...

Nanoparticles introduced into the bloodstream encounter the immune complement system, a proteolytic cascade that bridges innate surveillance and adaptive responses. Complement activation can occur via ...

The complement system is an intricate network of plasma proteins that defends against pathogens and clears cellular debris. Under normal conditions, activation proceeds through classical, lectin and ...

Arachnology and toxinology have increasingly illuminated the structural, biochemical and evolutionary diversity of venom ...

Our immune system is armed with an array of defenses designed to detect and eliminate harmful threats. One of its most powerful defense mechanisms is the complement system-a group of proteins that ...

Cedars-Sinai investigators have identified a genetic variant that increases people's risk of developing perianal Crohn's disease, the most debilitating manifestation of Crohn's disease. Science X ...