Different pathogens trigger characteristic immune responses

Different pathogens trigger characteristic immune responses. Today, scientists are familiar with bodily mechanisms used to combat bacteria,viruses, and fungi. But they are less familiar with so-called Type 2 responses, which respond to an enormous spectrum of stimuli ranging from nanometer-sized allergens to 20-meter-long parasitic worms. In a Review from the 27 July issue, Pulendran and Artis further detail Type 2 immunity, and how it initiates and controls its responses.