Protozoans of tissue and blood: A changing paradigm

We are pleased to bring out the second issue for the year 2016 which primarily focuses on blood and tissue dwelling protozoans. Toxoplasmosis, a long known zoonotic disease of humanity which was once feared for causing congenital infection, is now gaining significance in other patient groups. With the advent of HIV pandemic and rise in the number of organ transplants performed, this pathogen is increasingly being noted for its role in causing opportunistic infection. Post-transplant toxoplasmosis is a serious complication with devastating outcome.[1] The symposium section of the present issue discusses the recent trends in congenital toxoplasmosis and also sheds light on critical issues in transplant-related toxoplasmosis. Hydatid disease is yet another long known scourge to humanity, which is now being easily detected and treated. Radiology forms the mainstay modality in arriving at a preliminary diagnosis of this cystic disease.[2] The review article in this issue sums up all the conventional and recent radiological diagnostic techniques that are useful in detecting this parasitic disease.