Eosinophils are a type of white blood cell that play a key role in the immune response against parasitic infections, as well as in allergic reactions and asthma. Research in the field of eosinophils focuses on understanding their functions, how they are regulated, their role in various diseases, and potential therapeutic strategies targeting eosinophils. Studies also investigate the mechanisms of eosinophil recruitment and activation, as well as their interactions with other immune cells. Overall, research on eosinophils aims to improve our understanding of inflammatory and immune responses and develop new treatments for related diseases.